Perhaps you should try some spelling variations:
thien thanh » tien thanh, thi thanh, hien hanh
trinh quan » tinh quang, trinh luat
khung cong » nhung cong, khung long, phung cong
hoc thien » hoc hien, hoc thieu, hoc thiet
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban 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 thien thanh - hanh ((trinh han) or (trinh quan)) khung cong tan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thien thanh - hanh ((trinh han) OR (trinh quan)) khung cong tan than cap.
• Adding a wildcard symbol may retrieve word variants: hoc thien thanh - hanh ((trinh han) or (trinh quan)) khung cong tan than cap*.