Perhaps you should try some spelling variations:
thuat chuong » thuat cong, thuat hung, thuat song
tranh thuat » trong thuat, tranh chua, tranh thai
chuong cong » cuong cong, chong cong, chuong dong
chieu sach » chinh sach, chieu sang, chieu xanh
cong ngan » cong ngang, cong nhan, dong ngan
nhung cau » chung cu, nhung bai, nhu cau
hang cau » hang dau, hang ca, nang cao

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chieu sach) or (chiet tach)) - canh tranh thuat chuong cong ngan ((hang cau) OR (nhung cau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chieu sach) OR (chiet tach)) - canh tranh thuat chuong cong ngan ((hang cau) OR (nhung cau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chieu sach) or (chiet tach)) - canh tranh thuat chuong cong ngan ((hang cau) OR (nhung cau))".
• Adding a wildcard symbol may retrieve word variants: theo ((chieu sach) or (chiet tach)) - canh tranh thuat chuong cong ngan ((hang cau) OR (nhung cau))*.