Perhaps you should try some spelling variations:
chi thanh » chi nhanh, thi thanh, cho thanh
dung cong » dung trong
cong manh » cong danh, duong manh, cong thanh
manh toan » thanh toan, anh tuan, tinh toan
chi dinh » chi minh, chi binh, chu dinh
tranh va » tranh van, trang va, thanh va
trinh va » trinh van, trinh vat, trinh ve
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: doi ((chi dinh) or (chi thanh)) - canh ((tranh va) or (trinh va)) dung cong manh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi dinh) OR (chi thanh)) - canh ((tranh va) OR (trinh va)) dung cong manh toan cau.
• Adding a wildcard symbol may retrieve word variants: doi ((chi dinh) or (chi thanh)) - canh ((tranh va) or (trinh va)) dung cong manh toan cau*.