Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
ban thanh » ban hanh, ban hang
sach ty » sach y, sach thu, xach tay
cam cua » ca cua, nam cua, cau cua
hieu va » hieu qua
hang xu » chang xu, hanh xu, han xu
sach tu » sach thu, cach tu, sach uu
xu hoi » xa hoi, lu hoi, vu hoi
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 ty) OR (sach tu)) hang xu hoi. ((hieu va) or (lieu va)) cam cua ban thanh dai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ty) OR (sach tu)) hang xu hoi. ((hieu va) OR (lieu va)) cam cua ban thanh dai cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ty) OR (sach tu)) hang xu hoi. ((hieu va) or (lieu va)) cam cua ban thanh dai cua te*".