Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
phuong lap » phuong la, phuong lan, phong lap
hoc chieu » ho chieu, hoc dieu, hoc thiet
hoc thieu » toc thieu
luat bang » luat ban, luat bong, luat quang
lap toan » tap toan, lap doanh, phap toan
toan cao » toan ban, toan tap

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

• If you are trying to use Boolean operators, they must be ALL CAPS: ((((hoc chieu) OR (hoc thieu))) OR (hoc hien)) xanh - hanh trinh luat bang phuong lap toan cao~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((hoc chieu) OR (hoc thieu))) or (hoc hien)) xanh - hanh trinh luat bang phuong lap toan cao~".
• Adding a wildcard symbol may retrieve word variants: ((((hoc chieu) OR (hoc thieu))) or (hoc hien)) xanh - hanh trinh luat bang phuong lap toan cao*.