Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham xuc » cam xuc, chat xuc, cham soc
ban hanh » ban hang
ve triet » va trien, su triet
sach v » sach va, sach 2, sach vay
x hoi » xa hoi, o hoi, x ho
vi ve » va ve, gi ve, ve ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach v) or (sach y)) nang x hoi. hieu van cham xuc ((van ban) or (ban hanh)) vi ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach v) OR (sach y)) nang x hoi. hieu van cham xuc ((van ban) OR (ban hanh)) vi ve triet.
• Adding a wildcard symbol may retrieve word variants: su ((sach v) or (sach y)) nang x hoi. hieu van cham xuc ((van ban) or (ban hanh)) vi ve triet*.