Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
thong cong » trong cong, tong cong, thong thong
hieu manh » chieu xanh, hieu nganh, dieu hanh
canh manh » lanh manh, canh tranh, cach mang
cua thong » cua thuong, cua khong, cua tong
chinh cau » chinh chau, chinh ca, chinh can
manh cua » doanh cua, ban cua
cong san » cong tac
chan cau » phan cau, can cau, nhanh cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((hieu manh) or (chieu tinh)) - canh manh cua thong cong san ((chan cau) or (chinh cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu manh) OR (chieu tinh)) - canh manh cua thong cong san ((chan cau) OR (chinh cau)).
• Adding a wildcard symbol may retrieve word variants: doi ((hieu manh) or (chieu tinh)) - canh manh cua thong cong san ((chan cau) or (chinh cau))*.