Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
su triet » su viet, su tien, ve triet
thuc van » thuc vat, thuc dan, thuc va
thu hang » thi hang, thuc hanh, thu huong
hanh lai » hanh lam, hanh tai, thanh lap
van hanh » van thanh, ban hanh, van anh
sach thu » sach thue, sach thieu, sach tham
te sach » toc sach
hang xa » hoang xa, hang va, hang ca
ve cam » ve cham, ve cac, ve cai
va cam » va cham, va cac, va cao

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 thu hang xa hoi. hieu ((ve cam) or (va cam)) thuc van hanh lai ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach thu hang xa hoi. hieu ((ve cam) OR (va cam)) thuc van hanh lai ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: te sach thu hang xa hoi. hieu ((ve cam) or (va cam)) thuc van hanh lai ((cua triet) or (su triet))*.