Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
nhung vung » nhung dung, nhung huong, nhung tuong
chu manh » ho manh, chu han, chu van
trang va » hang va
tran van » luan van
vung anh » vuong anh, vung lanh, hung anh
anh toan » manh toan, anh tuan, thanh toan
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: theo ((chu manh) or (chieu sach)) - hanh ((trang va) OR (tran van)) nhung vung anh toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo ((chu manh) OR (chieu sach)) - hanh ((trang va) OR (tran van)) nhung vung anh toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo ((chu manh) or (chieu sach)) - hanh ((trang va) OR (tran van)) nhung vung anh toan cau".
• Adding a wildcard symbol may retrieve word variants: theo ((chu manh) or (chieu sach)) - hanh ((trang va) OR (tran van)) nhung vung anh toan cau*.