Perhaps you should try some spelling variations:
thien hach » thien thanh, hien hanh
nhung cong » dung cong, thong cong, hang cong
hoc thien » hoc hien, hoc thieu, hoc thiet
cong chuc » cong thuc, cong cu, cong cua
cong cau » cong cu, thong cau, cong tac
cong van » cong vang, cong san, song van
van than » van thanh, van thang, van tuan
than cao » toan cao, thai cao, than cap

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thien hach - thanh ((cong cau) OR (cong chuc)) nhung cong van than cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh ((cong cau) OR (cong chuc)) nhung cong van than cao".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh ((cong cau) OR (cong chuc)) nhung cong van than cao*.