Perhaps you should try some spelling variations:
thanh van » thanh san, thanh toan, thanh phan
nang cay » nang cao, nang cap, nang cai
cay phoi » cap phoi, tay hoi, cay cho
hieu van » hieu va, thien van, lieu va
van lam » van nam
van cua » vang cua, ban cua, dan cua
su cac » tu cac, su cao, su can
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: su cac ky nang cay phoi. hieu van lam ((duc va) or (tuc xa)) thanh van cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su cac ky nang cay phoi. hieu van lam ((duc va) OR (tuc xa)) thanh van cua te.
• Adding a wildcard symbol may retrieve word variants: su cac ky nang cay phoi. hieu van lam ((duc va) or (tuc xa)) thanh van cua te*.