Perhaps you should try some spelling variations:
cong ngang » cong nhan, cong quang, cong lang
chieu sach » chinh sach, chiet tach, chieu sang
thanh chau » thanh cha, thanh cham, thanh chu
hanh tran » hanh trang, thanh tran, hanh tram
cong vang » cong lang, cong quang, cong san
ho chieu » theo chieu, hoc thieu, doi chieu
tran van » luan van
van dung » van dong, xay dung, tin dung
cong van » cong san, song van, cong tan

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 - hanh tran van dung ((cong van) or (((cong vang) OR (cong ngang)))) thanh chau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu sach - hanh tran van dung ((cong van) OR (((cong vang) OR (cong ngang)))) thanh chau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - hanh tran van dung ((cong van) or (((cong vang) OR (cong ngang)))) thanh chau".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - hanh tran van dung ((cong van) or (((cong vang) OR (cong ngang)))) thanh chau*.