Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
chieu tinh » trieu tinh, lieu tinh, chau tinh
tranh cua » doanh cua, manh cua
cua nhung » va nhung
huong van » huong dan, duong van, luong van
hong van » hoang van, thong van, phong van
tuan cau » toan cau, quan cau, tuan cu

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chieu sach) or (chieu tinh)) - canh tranh cua nhung ((huong van) OR (hong van)) tuan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chieu sach) OR (chieu tinh)) - canh tranh cua nhung ((huong van) OR (hong van)) tuan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chieu sach) or (chieu tinh)) - canh tranh cua nhung ((huong van) OR (hong van)) tuan cau".
• Adding a wildcard symbol may retrieve word variants: doi ((chieu sach) or (chieu tinh)) - canh tranh cua nhung ((huong van) OR (hong van)) tuan cau*.