Perhaps you should try some spelling variations:
hanh trang » thanh trung, canh tranh, minh trang
hanh trinh » canh tranh, hanh chinh
tong cong » trong cong, cong cong, dung cong
ho trieu » mot trieu, 25 trieu, 30 trieu
cong van » cong vang, cong san, song van
tuan ban » tuan bang, toan ban, quang ban
luan ban » luan van, luan san, luan han
he tong » he thong, he trong, he cong

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

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