Perhaps you should try some spelling variations:
hoc thieu » toc thieu, hoc hien
hanh tran » hanh trang, thanh tran, hanh tram
dung cong » dung trong
van thanh » ban thanh
ho chieu » theo chieu, doi chieu, mot chieu
tran xay » tra xay, tran day, trinh xay
van tuan » van quan, van ban, anh tuan

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) OR (hoc thieu)) sach - hanh tran xay dung cong ((van thanh) or (van tuan)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) sach - hanh tran xay dung cong ((van thanh) OR (van tuan)) cau*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) OR (hoc thieu)) sach - hanh tran xay dung cong ((van thanh) or (van tuan)) cau*".