Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
nhieu tang » chieu sang, hieu lang, nhiet nang
nho nhieu » nho hieu, ho chieu, nha hieu
tinh cua » trinh cua, sinh cua, tinh chat
cong dan » cong tan, huong dan, cong dong
cong san » cong tac
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: nho nhieu tang - hanh ((tinh cua) or (trinh quan)) dung ((cong dan) OR (cong san)) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: nho nhieu tang - hanh ((tinh cua) OR (trinh quan)) dung ((cong dan) OR (cong san)) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "nho nhieu tang - hanh ((tinh cua) or (trinh quan)) dung ((cong dan) OR (cong san)) toan cau".
• Adding a wildcard symbol may retrieve word variants: nho nhieu tang - hanh ((tinh cua) or (trinh quan)) dung ((cong dan) OR (cong san)) toan cau*.