Perhaps you should try some spelling variations:
trinh quan » tinh quang, trinh luat, trinh han
hanh trinh » canh tranh, hanh chinh
doi chieu » doc hieu, doi chi, ho chieu
quan dung » quang dung, quan duong, qua dung
dung cong » dung trong
cong lang » cong vang, cong luong, cong quang
thong cau » thong cac, thong tu, thong cua
thong cap » thong cac, trung cap, thong cua

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((doi chieu) OR (hoc hien)) xanh - hanh trinh quan dung cong lang ((thong cau) OR (thong cap))~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((doi chieu) or (hoc hien)) xanh - hanh trinh quan dung cong lang ((thong cau) OR (thong cap))~".
• Adding a wildcard symbol may retrieve word variants: ((doi chieu) or (hoc hien)) xanh - hanh trinh quan dung cong lang ((thong cau) OR (thong cap))*.