Perhaps you should try some spelling variations:
theo chieu » theo tieu, theo chu, thi chieu
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
van khang » van khanh, van thanh, van quang
ho chieu » hoc thieu, doi chieu, mot chieu
tran xay » tra xay, tran day, trinh xay
dan chan » dan gian, dan ca, van chat

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) or (ho chieu)) sach - hanh tran xay dung cong ((dan chan) or (van khang)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) sach - hanh tran xay dung cong ((dan chan) OR (van khang)) tap.
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) or (ho chieu)) sach - hanh tran xay dung cong ((dan chan) or (van khang)) tap*.