Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
cong dan » cong san, cong tan, huong dan
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap
ho cuu » ho chu, so cuu, khao cuu
ho cua » hoc cua, hoi cua, hoa cua
anh va » hanh va

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

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