Perhaps you should try some spelling variations:
hieu van » hieu va, thien van, hieu ve
cam nhat » cam nhan, nam nhat, cap nhat
ban hanh » ban hang
hanh vai » hanh vi, hanh va, hanh tai
te sach » toc sach
vai cua » dai cua, hai cua, lai cua
y lang » o lang, tay lang, yen lang
_ lang » o lang, _ land
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 (_ lang)) xa hoi. ((hieu van) or (lieu va)) cam nhat ban hanh vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y lang) OR (_ lang)) xa hoi. ((hieu van) OR (lieu va)) cam nhat ban hanh vai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((y lang) OR (_ lang)) xa hoi. ((hieu van) or (lieu va)) cam nhat ban hanh vai cua te*".