Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, hang cong
hanh trung » thanh trung, hanh trang, manh trung
trung dap » trung cap, trung dai, trung dam
dap nhung » vap nhung, va nhung, dap ung
cong van » cong vang, cong san, song van
cho chu » cho thue
van van » tan van, san van, van vat

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 (cho chu)) xanh - hanh trung dap nhung cong van van ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo tieu) OR (cho chu)) xanh - hanh trung dap nhung cong van van ban.
• Adding a wildcard symbol may retrieve word variants: ((theo tieu) or (cho chu)) xanh - hanh trung dap nhung cong van van ban*.