Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
cam tuc » cam xuc, cam tu, nam thuc
vai cua » dai cua, hai cua, lai cua
tuc ban » thuc ban, truc ban, tu ban
sanh ky » hanh ky, nganh ky, thanh ky
hieu ve » hieu va, hieu van
sang ky » sang kyo, dang ky, tang ky
vi cua » di cua
ve cam » ve cham, ve cac, va cam
x hoi » xa hoi, o hoi, x ho

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sanh ky) OR (sang ky)) nang x hoi. hieu ve cam tuc ban thanh ((vi cua) or (vai cua)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sanh ky) OR (sang ky)) nang x hoi. hieu ve cam tuc ban thanh ((vi cua) OR (vai cua)) triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sanh ky) OR (sang ky)) nang x hoi. hieu ve cam tuc ban thanh ((vi cua) or (vai cua)) triet*".