Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh trang » thanh trung, canh tranh, hanh trinh
dang luong » nang luong, hang luong, dang cuong
dung luong » dung thuong, dung phuong, dung truong
trang cua » tranh cua, tang cua, trung cua
vat tuan » van tuan, va tuan, vat thanh
tuan cu » tuan tu, quan cua, tuan thu

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 (chieu sach)) - hanh trang cua ((dang luong) OR (dung luong)) vat tuan cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((chieu xanh) OR (chieu sach)) - hanh trang cua ((dang luong) OR (dung luong)) vat tuan cu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((chieu xanh) or (chieu sach)) - hanh trang cua ((dang luong) OR (dung luong)) vat tuan cu".
• Adding a wildcard symbol may retrieve word variants: hoc ((chieu xanh) or (chieu sach)) - hanh trang cua ((dang luong) OR (dung luong)) vat tuan cu*.