Perhaps you should try some spelling variations:
thuyet thiet » thuyet viet, thuat thiet, thuat nhiet
thiet nang » nhiet nang, thien nang, thi nang
canh thanh » canh tranh, danh thanh, anh thanh
thanh qua » thanh quan, thanh qui, hanh qua
qua trong » quan trong, qua trinh, qua song
cong manh » cong danh, duong manh, cong thanh
toan cau » toan cao, toan tap, toan tai
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuyet thiet nang - canh thanh qua trong cong manh ((toan cau) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuyet thiet nang - canh thanh qua trong cong manh ((toan cau) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: thuyet thiet nang - canh thanh qua trong cong manh ((toan cau) or (toan ban))*.