Perhaps you should try some spelling variations:
di truyen » co truyen
thanh dai » thanh hai, thanh tai, thanh dat
nam thuc » nam thuoc, am thuc, nam thu
ve triet » va trien, su triet
va thanh » gia thanh, ban thanh, va tinh
so sach » so sanh, bo sach, co sach
sach vu » sach va, sach tu, sach uu
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
vu nang » vuc nang, va nang, vu dang
cam tu » cam thu, nam tu, dam tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach vu nang cao hoi. hieu ve ((nam thuc) or (cam tu)) va thanh dai ((ve triet) or (di truyen))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sach vu nang cao hoi. hieu ve ((nam thuc) OR (cam tu)) va thanh dai ((ve triet) OR (di truyen))*.