Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh luan » trinh luat, trinh quan, trinh han
hoc thieu » toc thieu, hoc hien
luan dung » lan dung, luan dong, luan hung
hoc hieu » hoc hien, doc hieu, hoc dieu
tac toan » tap toan, hach toan, tich toan
tam toan » tap toan, tam than, pham toan

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 luan dung trong ((tac toan) or (tam toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc hieu) OR (hoc thieu)) manh - hanh trinh luan dung trong ((tac toan) OR (tam toan)) tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc hieu) or (hoc thieu)) manh - hanh trinh luan dung trong ((tac toan) or (tam toan)) tap*.