Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
kieu tinh » lieu tinh, trieu tinh, diep tinh
dung cong » dung trong
qua dung » quang dung, su dung, qua song
cong dan » cong san, cong tan, huong dan
than cau » phan cau, than cap, thanh chau
toan cau » toan cao, toan ban, toan tap
so kieu » so dieu, so lieu, ho kieu

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

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