Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong trinh, cong tan
dang cong » dung cong
thanh hoa » thanh pho
theo chu » theo chieu, cho chu, chao chu
chu bang » thu bang, chuc nang, chu quang
tang vat » tang van, dang vat, bang vat
trang va » tran van, hang va
hoa cao » hoc cao, hoa co, hoa cac

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 bang - hanh ((tang vat) or (trang va)) dang cong thanh hoa cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu bang - hanh ((tang vat) OR (trang va)) dang cong thanh hoa cao.
• Adding a wildcard symbol may retrieve word variants: theo chu bang - hanh ((tang vat) or (trang va)) dang cong thanh hoa cao*.