Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cho sang » cho hang, cho san, cao sang
trinh va » trinh van, trinh vat, trinh ve
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
cao cho » cap cho, cao chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: cao cho sang - hanh ((trinh va) or (sinh vat)) nhung cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: cao cho sang - hanh ((trinh va) OR (sinh vat)) nhung cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: cao cho sang - hanh ((trinh va) or (sinh vat)) nhung cong dan toan cau*.