Perhaps you should try some spelling variations:
hieu xanh » chieu xanh, hieu manh, hieu nganh
hung cong » nhung cong, hung cuong, phung cong
doc hieu » toc thieu, hoc thieu, hoc hien
tam hung » tam huong, cam hung, tai hung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doc hieu xanh - ((thanh tung) OR (thanh cong)) tam hung cong tan toan ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doc hieu xanh - ((thanh tung) OR (thanh cong)) tam hung cong tan toan ban*".