Perhaps you should try some spelling variations:
chieu xanh » chieu sang, chieu tinh, hieu manh
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
quan hoang » luan hoan
cua hoang » cua hang, tuan hoang, xuan hoang
vuong vat » luong vat, vuong tat, vuong van
vat quan » van quan, va quan, hat quan
quan cau » quang cao, toan cau, quan ha

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