Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
phong dang » phong dong, phung dang, phuong danh
hieu lang » chieu sang, hieu quang, nhieu tang
tranh hai » tranh thai, thanh hai, tran hai
dang tinh » dang dinh, dang sinh, dang vinh
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: ho ((hieu lang) or (chieu sach)) - canh tranh hai phong dang tinh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho ((hieu lang) OR (chieu sach)) - canh tranh hai phong dang tinh toan cau.
• Adding a wildcard symbol may retrieve word variants: ho ((hieu lang) or (chieu sach)) - canh tranh hai phong dang tinh toan cau*.