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
cu nhung » cua nhung, tu nhung, co nhung
cong van » cong vang, cong san, song van
than cao » toan cao, thai cao, than sao
than cap » khan cap, thanh lap, thanh cac
cong cu » chung cu

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 cu nhung cong van ((than cao) or (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien hach - thanh cong cu nhung cong van ((than cao) OR (than cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh cong cu nhung cong van ((than cao) or (than cap))*.