Perhaps you should try some spelling variations:
thanh hang » thanh hoang, thanh thang, tranh hang
hanh trinh » canh tranh, hanh chinh
25 trieu » 30 trieu
cong tap » cuong tap, cong tac, cong tan
tap toan » tap doan, tap quan, bai toan
toan ban » van ban
va nang » van nang, cam nang, kha nang
da nang » cam nang, kha nang, cao nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: 25 trieu tinh - ((thanh hang) or (hanh trinh)) ((va nang) OR (da nang)) cong tap toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: 25 trieu tinh - ((thanh hang) OR (hanh trinh)) ((va nang) OR (da nang)) cong tap toan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "25 trieu tinh - ((thanh hang) or (hanh trinh)) ((va nang) OR (da nang)) cong tap toan ban".
• Adding a wildcard symbol may retrieve word variants: 25 trieu tinh - ((thanh hang) or (hanh trinh)) ((va nang) OR (da nang)) cong tap toan ban*.