Perhaps you should try some spelling variations:
phuong doan » phuong loan, phuong hoang, huong dan
chieu sach » chinh sach, chiet tach, chieu sang
thanh tung » thanh cong
phuong dan » phuong danh, huong dan, phuong lan
ho chieu » theo chieu, hoc thieu, doi chieu
ha nhung » hoa nhung, hay nhung, pha nhung
toan cao » toan ban, toan tap
tung ha » trung ha, dung ha, tung ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu sach - thanh tung ha nhung ((phuong dan) or (phuong doan)) ((toan cao) or (van ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - thanh tung ha nhung ((phuong dan) OR (phuong doan)) ((toan cao) OR (van ban)).
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - thanh tung ha nhung ((phuong dan) or (phuong doan)) ((toan cao) or (van ban))*.