Perhaps you should try some spelling variations:
hanh trinh » hanh chinh
nang nong » nang song, hang nong, nang dong
thi hieu » thi chieu, thi hien, thi dieu
chao chu » cho chu, cua chu, cao cho
chu nang » chuc nang, chua nang, cuu nang
nong tan » cong tan, nong dan, nong san
tan toan » tan tran, tap toan, van 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: ((thi hieu) or (chao chu)) xanh - ((hanh trinh) or (canh tranh)) chu nang nong tan toan cao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thi hieu) OR (chao chu)) xanh - ((hanh trinh) OR (canh tranh)) chu nang nong tan toan cao.
• Adding a wildcard symbol may retrieve word variants: ((thi hieu) or (chao chu)) xanh - ((hanh trinh) or (canh tranh)) chu nang nong tan toan cao*.