Perhaps you should try some spelling variations:
thien van » thi van
hanh dai » hanh tai, hanh dao, vanh dai
ban hanh » ban hang
mai khoi » mai khoa, tai khoa, cac khoi
cac xuc » cac nuoc, chat xuc, cac cuoc
te sach » toc sach
sach ty » sach y, sach tu, sach thu
ty sang » ty xang, ty hang, duy sang
cua cu » cua chu, cua cau, cua su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty sang ((xa hoi) or (mai khoi)). thien van ((cac xuc) or (cam xuc)) ban hanh dai cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty sang ((xa hoi) OR (mai khoi)). thien van ((cac xuc) OR (cam xuc)) ban hanh dai cua cu.
• Adding a wildcard symbol may retrieve word variants: te sach ty sang ((xa hoi) or (mai khoi)). thien van ((cac xuc) or (cam xuc)) ban hanh dai cua cu*.