Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tranh » canh tranh, hanh trinh, hanh trang
nhung cong » dung cong, thong cong, hang cong
hoc chieu » hoc thieu, ho chieu, hoc hien
tranh va » tranh van, trang va, trinh va
san chay » van chat, dan chan, san chi

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 sach - hanh tranh va nhung cong ((san chay) or (san pham)) cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc chieu sach - hanh tranh va nhung cong ((san chay) OR (san pham)) cao.
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh tranh va nhung cong ((san chay) or (san pham)) cao*.