Perhaps you should try some spelling variations:
chieu sach » chinh sach, chiet tach, chieu sang
hanh tung » thanh tung, manh tung, thanh trung
hanh dung » thanh dung, anh dung, hanh dong
pham hang » pham hoang, pham hong, pham hanh
hang cong » dang cong, hang nong, bang cong
ho chieu » theo chieu, hoc thieu, doi chieu
cong san » cong tac
san tran » tan tran, ban tran, dang tran
tran tan » tran tuan, tran van, tran thanh

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 tung) OR (hanh dung)) pham hang cong san tran tan~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu sach - ((hanh tung) OR (hanh dung)) pham hang cong san tran tan".
• Adding a wildcard symbol may retrieve word variants: ho chieu sach - ((hanh tung) OR (hanh dung)) pham hang cong san tran tan*.