Perhaps you should try some spelling variations:
thuong luong » theo luong, thong thuong
thanh trung » thanh tung
trung chap » trung cap, trung ha, tranh chap
cong luong » cong thuong, nang luong, cong dong
hieu lang » chieu sang, hieu quang, nhieu tang
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 trung chap ((thuong luong) OR (cong luong)) ((van chat) or (cao chat)) man~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho hieu lang - thanh trung chap ((thuong luong) OR (cong luong)) ((van chat) OR (cao chat)) man.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho hieu lang - thanh trung chap ((thuong luong) OR (cong luong)) ((van chat) or (cao chat)) man".
• Adding a wildcard symbol may retrieve word variants: ho hieu lang - thanh trung chap ((thuong luong) OR (cong luong)) ((van chat) or (cao chat)) man*.