Perhaps you should try some spelling variations:
thanh tung » thanh cong
thong cong » trong cong, tong cong, thong thong
hieu lang » chieu sang, hieu quang, nhieu tang
anh thong » anh thuong, anh trong, anh huong
tung anh » trung anh, tung manh, hung anh
cong san » cong tac
ho hieu » ho chieu, hoi hieu, nho hieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho hieu lang - thanh tung anh thong cong san ((toan ban) OR (van ban))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh tung anh thong cong san ((toan ban) OR (van ban))".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh tung anh thong cong san ((toan ban) OR (van ban))*.