Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
khia canh » kho canh, thi canh
dung cong » dung trong
cong tinh » cong trinh, cong vinh, long tinh
khi xanh » thi hanh, thi anh, thi oanh
van dung » van dong, xay dung, tin dung
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: doi ((khi xanh) OR (khia canh)) - ((hanh tranh) or (hanh trinh)) van dung cong tinh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: doi ((khi xanh) OR (khia canh)) - ((hanh tranh) OR (hanh trinh)) van dung cong tinh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "doi ((khi xanh) OR (khia canh)) - ((hanh tranh) or (hanh trinh)) van dung cong tinh toan ban*".