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
luong vat » luong va, luong van, luong tai
cua dang » cua cong
vat tuan » van tuan, va tuan, vat thanh
tuan tu » tuan thu, tran tu, toan tu

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