Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
dong cong » duong cong, dang cong, cong cong
dung cong » dung trong
anh dang » anh dong, anh dung, anh bang
dang cua » dung cua, dong cua, mang cua
dan toan » van toan, dan than, manh toan
toan cau » toan cao, toan ban, toan tap

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo ((chuc nang) or (chieu xanh)) - anh dang cua ((dong cong) OR (dung cong)) dan toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chuc nang) OR (chieu xanh)) - anh dang cua ((dong cong) OR (dung cong)) dan toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chuc nang) or (chieu xanh)) - anh dang cua ((dong cong) OR (dung cong)) dan toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chuc nang) or (chieu xanh)) - anh dang cua ((dong cong) OR (dung cong)) dan toan cau*.