Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh tranh » canh tranh, hanh trang, lanh tranh
kieu tinh » lieu tinh, trieu tinh, diep tinh
cua dung » cua dang, cua dong, qua dung
cong ban » cong bang, cong tan, cong dan
cong san » cong tac
than cau » toan cau, phan cau, than cap
ho kieu » ho lieu, so kieu, thi kieu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ho kieu tinh - ((hanh tranh) or (hanh trinh)) cua dung ((cong ban) OR (cong san)) than cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho kieu tinh - ((hanh tranh) OR (hanh trinh)) cua dung ((cong ban) OR (cong san)) than cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho kieu tinh - ((hanh tranh) or (hanh trinh)) cua dung ((cong ban) OR (cong san)) than cau".
• Adding a wildcard symbol may retrieve word variants: ho kieu tinh - ((hanh tranh) or (hanh trinh)) cua dung ((cong ban) OR (cong san)) than cau*.