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
cau nhung » cam nhung, cau phuong, canh nhung
cong cau » cong cu, cong chuc, thong cau
cong van » cong vang, cong san, song van
than cao » toan cao, thai cao, than sao
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 thien hach - thanh cong cau nhung cong van ((than cao) OR (than cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thien hach - thanh cong cau nhung cong van ((than cao) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc thien hach - thanh cong cau nhung cong van ((than cao) OR (than cap))*.