Perhaps you should try some spelling variations:
tai thanh » thi thanh, tai chinh, ban thanh
va trien » va truyen, va thiet, va tuyen
thanh xu » hanh xu, thanh tu, thanh xuan
va triet » va thiet, ve triet, cua triet
van hanh » van thanh, ban hanh, van anh
sach tai » sach bai, sach tham, sach dao
tuc van » thuc van, truc van, tuc va
hanh va » hang va, hanh vi
su sach » so sach, vu sach
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cai
xu hoi » xa hoi, lu hoi, vu hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach tai thanh xu hoi. hieu ((ve cam) or (va cam)) tuc van hanh va ((va triet) or (va trien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach tai thanh xu hoi. hieu ((ve cam) OR (va cam)) tuc van hanh va ((va triet) OR (va trien)).
• Adding a wildcard symbol may retrieve word variants: su sach tai thanh xu hoi. hieu ((ve cam) or (va cam)) tuc van hanh va ((va triet) or (va trien))*.