Perhaps you should try some spelling variations:
trinh cong » trinh dung
chao chu » cho chu, cua chu, cao cho
chu xanh » chu manh, chieu xanh, chua xang
tang qua » tang quan, tang cua, tang quang
tang quy » tan quy, nang quy, tang quan
cong tan » cong tac, cong san, cong thanh
tan van » tran van, tang van, luan van

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "chao chu xanh - hanh ((tang qua) OR (tang quy)) trinh cong tan van ban~".
• Adding a wildcard symbol may retrieve word variants: chao chu xanh - hanh ((tang qua) OR (tang quy)) trinh cong tan van ban*.