Perhaps you should try some spelling variations:
hoc thieu » hoc hien
hanh tinh » hanh trinh, nhanh tinh, thanh tinh
chat nang » chai nang, chat quang, chang nang
nang cong » nang song, dang cong, bang cong
van thong » van thuong, van phong, va thong
thong cap » thong cac, trung cap, thong cua
cong van » cong vang, cong san, song van

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thieu) or (toc thieu)) tinh - hanh tinh chat nang cong van thong cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) tinh - hanh tinh chat nang cong van thong cap*.