Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
trung pham » trung phan, tung pham, truong phan
trung phat » truong phat, trong phat, trung phan
hoang cong » hang cong, hoang long, hoang vuong
hoc chieu » hoc thieu, ho chieu, hoc hien
cong san » cong tac
san van » tan van, luan van, tran van

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 ((trung pham) OR (trung phat)) hoang cong san van ban~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc chieu sach - hanh ((trung pham) OR (trung phat)) hoang cong san van ban".
• Adding a wildcard symbol may retrieve word variants: hoc chieu sach - hanh ((trung pham) OR (trung phat)) hoang cong san van ban*.