Perhaps you should try some spelling variations:
truong phuong » truong chung, truong trung, dung phuong
nhung phuong » dung phuong, nhu phuong, bang phuong
chieu sach » chinh sach, chiet tach, chieu sang
hanh trung » thanh trung, hanh trang, manh trung
doi chieu » doc hieu, doi chi, ho chieu
trung vap » trung cap, trung va, trung van
dan toan » van toan, dan than, manh toan
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: doi chieu sach - hanh trung vap ((nhung phuong) or (truong phuong)) dan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi chieu sach - hanh trung vap ((nhung phuong) OR (truong phuong)) dan toan cao.
• Adding a wildcard symbol may retrieve word variants: doi chieu sach - hanh trung vap ((nhung phuong) or (truong phuong)) dan toan cao*.