Perhaps you should try some spelling variations:
thong cong » trong cong, tong cong, thong thong
tieu sang » chieu sang, tieu dung, tiem nang
cong manh » cong danh, duong manh, cong thanh
anh nang » ganh nang, anh bang, anh dang
va thong » va thuong, va phuong, he thong
toan cao » toan tap
toan ban » van ban
nang va » nang van, hang va, nang ma

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tieu sang - anh nang va thong cong manh ((toan cao) or (toan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu sang - anh nang va thong cong manh ((toan cao) OR (toan ban)).
• Adding a wildcard symbol may retrieve word variants: theo tieu sang - anh nang va thong cong manh ((toan cao) or (toan ban))*.