Perhaps you should try some spelling variations:
hanh tram » hanh tam, hanh trang, thanh tran
dung cong » dung trong
tram xay » tra xay, pham xay, thau xay
cong tan » cong tac, cong san, cong thanh
tan than » tan thanh, tan tran, ban than
than tap » toan tap, han tap, phan tap
doi chi » doi khi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo tieu) or (doi chi)) sach - hanh tram xay dung cong tan than tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (doi chi)) sach - hanh tram xay dung cong tan than tap.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (doi chi)) sach - hanh tram xay dung cong tan than tap*.