Perhaps you should try some spelling variations:
nhanh thanh » phan thanh, nhanh tinh
thuong cong » thong cong, thuong con, thuong dong
nhanh than » nhanh thang, nhanh thai, thanh thanh
cua thuong » cua truong, cua phuong, ca thuong
hieu lang » chieu sang, hieu quang, nhieu tang
cong tac » cong ty
tac ca » tac cua, tac can, tac cay
ca cau » cua cau, cac cau, can 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 lang) or (trieu tinh)) - ((nhanh than) OR (nhanh thanh)) cua thuong cong tac ca cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((hieu lang) OR (trieu tinh)) - ((nhanh than) OR (nhanh thanh)) cua thuong cong tac ca cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((hieu lang) or (trieu tinh)) - ((nhanh than) OR (nhanh thanh)) cua thuong cong tac ca cau".
• Adding a wildcard symbol may retrieve word variants: doi ((hieu lang) or (trieu tinh)) - ((nhanh than) OR (nhanh thanh)) cua thuong cong tac ca cau*.