Search Operator Terms Help

[PL4YB0Y]

Hello, i am new here, I am tired of getting vague results on most search engines and on youtube. I have read a couple of articles of search operator terms or something to that effect like: "Hunger AND Food AND Burgers" or something to that effect, but most guides seem incomplete. Like "allintitle' etc. I know this issue is easily googleable but Im looking for more advanced ways or something. Especially when looking for dоcuments before a certain time. like im not sure if this is making sense. I primarily use yandex and am looking for more content on NPC's.