Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
lieu tinh » trieu tinh, diep tinh, bien tinh
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
tran van » luan van
van dung » van dong, xay dung, tin dung
van toan » van tuan, van tan, van thanh

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((chieu xanh) or (lieu tinh)) - hanh tran van dung cong ((xuan toan) or (van toan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (lieu tinh)) - hanh tran van dung cong ((xuan toan) OR (van toan)) cau.
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (lieu tinh)) - hanh tran van dung cong ((xuan toan) or (van toan)) cau*.