Perhaps you should try some spelling variations:
van thoai » van hoai, van thai, than thoai
pham chuc » pham duc, pham huu, kham chua
thoai cua » thai cua, thong cua, hoi cua
thi nang » thi cong, ki nang, thi hanh
so sach » so sanh, bo sach, co sach
nang co » nang cao, nang doc, nang noi
hieu va » lieu va, hieu qua
va pham » van pham, va phat, va phap
chuc va » thuc va, thuc vat
co hoi » co hoc, co loi
cua tu » cua tuc, cua su, cua cu

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) or (do sanh)) thi nang co hoi. hieu va pham chuc va van thoai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (do sanh)) thi nang co hoi. hieu va pham chuc va van thoai cua tu.
• Adding a wildcard symbol may retrieve word variants: ((so sach) or (do sanh)) thi nang co hoi. hieu va pham chuc va van thoai cua tu*.