Perhaps you should try some spelling variations:
cong thanh » dong thanh, cong tan, truong thanh
canh tran » canh tranh, hanh trang, banh trang
van nhung » van nhuong, va nhung, van hung
chi xanh » chi anh, chi danh, chieu xanh
chi hanh » chi nhanh, chi thanh, thi hanh
tran van » luan van
pho da » pho ha

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((chi xanh) or (chi hanh)) - canh tran van nhung ((cong thanh) OR (cong trinh)) pho da~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi hanh)) - canh tran van nhung ((cong thanh) OR (cong trinh)) pho da.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) or (chi hanh)) - canh tran van nhung ((cong thanh) OR (cong trinh)) pho da".
• Adding a wildcard symbol may retrieve word variants: doi ((chi xanh) or (chi hanh)) - canh tran van nhung ((cong thanh) OR (cong trinh)) pho da*.