Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh qua » trinh quan, trinh cua, trinh quang
dung cong » dung trong
chi xanh » chi anh, chi danh, chieu xanh
chi hanh » chi nhanh, chi thanh, thi hanh
qua dung » quang dung, su dung, qua song
cong van » cong vang, cong san, song van
tuan cu » tuan tu, quan cua, tuan thu
luan » lan

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)) - hanh trinh qua dung cong van ((tuan cu) or (quan luan))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((chi xanh) OR (chi hanh)) - hanh trinh qua dung cong van ((tuan cu) OR (quan luan))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((chi xanh) OR (chi hanh)) - hanh trinh qua dung cong van ((tuan cu) or (quan luan))*".