Perhaps you should try some spelling variations:
thanh tran » thanh trang, thanh toan, thanh tra
hanh tran » hanh trang, hanh tram, thanh trang
dung cong » dung trong
van thanh » ban thanh, van tuan
thanh tap » thanh lap, thanh tai, thanh tay
theo chu » theo chieu, cho chu, chao chu
ho chieu » theo chieu, hoc thieu, doi chieu
cong van » cong vang, cong san, song van

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

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