Perhaps you should try some spelling variations:
hoc thieu » hoc hien
cong hung » cong chung, cong huong, cong dung
cong van » cong vang, cong san, song van
van cong » van dong, van phong, phan cong
hung dan » huong dan, dung dan, tung dan
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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)) sach - thanh cong van cong hung dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thieu) OR (toc thieu)) sach - thanh cong van cong hung dan than cap*.