Perhaps you should try some spelling variations:
lang cong » dang cong, bang cong, hang cong
chu tinh » chau tinh, chua tinh, cuu tinh
tranh va » tranh van, trang va, thanh va
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
hoi chu » hoi chuc

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoi chu tinh - canh ((tranh va) or (trinh va)) lang cong dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoi chu tinh - canh ((tranh va) OR (trinh va)) lang cong dan toan cau.
• Adding a wildcard symbol may retrieve word variants: hoi chu tinh - canh ((tranh va) or (trinh va)) lang cong dan toan cau*.