Perhaps you should try some spelling variations:
nhung cong » dung cong, thong cong, nhung don
hanh trinh » canh tranh, hanh chinh
trinh cua » tinh cua, trinh luat, trinh quan
hang cong » dang cong, hang nong, bang cong
van thanh » ban thanh, van tuan
theo chu » theo chieu, cho chu, chao chu
dan chan » dan gian, dan ca, van chat
chu van » cuu van, chu han

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 van - hanh trinh cua ((nhung cong) OR (hang cong)) ((dan chan) or (van thanh)) cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo chu van - hanh trinh cua ((nhung cong) OR (hang cong)) ((dan chan) OR (van thanh)) cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo chu van - hanh trinh cua ((nhung cong) OR (hang cong)) ((dan chan) or (van thanh)) cau".
• Adding a wildcard symbol may retrieve word variants: theo chu van - hanh trinh cua ((nhung cong) OR (hang cong)) ((dan chan) or (van thanh)) cau*.