Perhaps you should try some spelling variations:
chieu tinh » trieu tinh, lieu tinh, chau tinh
hanh tranh » canh tranh, lanh tranh, nhanh thanh
hanh trinh » canh tranh, hanh chinh
hanh trang » thanh trung, canh tranh, minh trang
doi chieu » doc hieu, doi chi, ho chieu
cua thong » cua thuong, cua khong, cua tong
thong cap » thong cac, trung cap, thong cua
cap van » cac van, cao van, tap van

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

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