Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh lan » trinh luan, trinh han, trinh san
tich toan » tinh toan, tich than, trinh toan
hoc hieu » hoc hien, doc hieu, hoc dieu
lan dung » van dung, dan dung, lan hung
tam than » ban than

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc hieu) or (hoc thieu)) manh - hanh trinh lan dung trong ((tich toan) or (tam than)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) manh - hanh trinh lan dung trong ((tich toan) OR (tam than)) tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) manh - hanh trinh lan dung trong ((tich toan) or (tam than)) tap*.