Perhaps you should try some spelling variations:
thuong manh » thuong mach, thuong nganh, thuong mai
luan tuong » luan luong, luat thuong, xuan truong
luan trong » quan trong, luat trong, luong trong
hanh mang » nhanh mang, hanh trang, nhanh lang
manh toan » thanh toan, anh tuan, tinh toan
toan ban » van ban

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((toc thieu) or (hoc hien)) tinh - hanh mang ((luan trong) OR (luan tuong)) thuong manh toan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((toc thieu) OR (hoc hien)) tinh - hanh mang ((luan trong) OR (luan tuong)) thuong manh toan ban*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((toc thieu) or (hoc hien)) tinh - hanh mang ((luan trong) OR (luan tuong)) thuong manh toan ban*".