Perhaps you should try some spelling variations:
thanh tung » thanh cong
doi chieu » doc hieu, doi chi, mot chieu
dan nhung » ban nhung, dap nhung, san nhung
ho chieu » theo chieu, hoc thieu, mot chieu
tung dan » dung dan, huong dan, trung dai
cong tac » cong ty
phan dau » phan tu, hang dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) OR (doi chieu)) xanh - thanh tung dan nhung ((cong san) or (cong tac)) phan dau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (doi chieu)) xanh - thanh tung dan nhung ((cong san) OR (cong tac)) phan dau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (doi chieu)) xanh - thanh tung dan nhung ((cong san) or (cong tac)) phan dau".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) OR (doi chieu)) xanh - thanh tung dan nhung ((cong san) or (cong tac)) phan dau*.