Perhaps you should try some spelling variations:
tranh chua » tranh cua, trinh chuan, tranh chap
chua nang » chuc nang, chua xang, kha nang
ho trieu » mot trieu, 30 trieu, ho chieu
25 trieu » 30 trieu
song tap » tong tap, song tam, cuong tap
tap toan » tap doan, tap quan, bai toan
toan cao » toan ban, toan tap

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) OR (25 trieu)) tinh - canh tranh chua nang song tap toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho trieu) OR (25 trieu)) tinh - canh tranh chua nang song tap toan cao".
• Adding a wildcard symbol may retrieve word variants: ((ho trieu) OR (25 trieu)) tinh - canh tranh chua nang song tap toan cao*.