Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
hieu va » hieu qua
cam tuc » cam xuc, cam tu, nam thuc
tuc van » thuc van, truc van, tuc va
vai cua » dai cua, hai cua, lai cua
y lang » o lang, _ lang, tay lang
cua te » cua tu

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 ((y lang) or (_ land)) xa hoi. ((hieu va) or (lieu va)) cam tuc van hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (_ land)) xa hoi. ((hieu va) OR (lieu va)) cam tuc van hanh vai cua te.
• Adding a wildcard symbol may retrieve word variants: te sach ((y lang) or (_ land)) xa hoi. ((hieu va) or (lieu va)) cam tuc van hanh vai cua te*.