Perhaps you should try some spelling variations:
nang thuong » hang thuong, nang truong, dang thuong
hanh dong » anh dong, ha dong
dong luan » dung luan, tong luan, dong xuan
luan nang » luan van, van nang, luan san
manh toan » thanh toan, tinh toan
theo cuu » khao cuu, thao cua, theo yeu
theo chu » theo chieu, cho chu, chao chu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo cuu) or (theo chu)) tinh - hanh dong luan nang thuong ((manh toan) OR (anh tuan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo cuu) OR (theo chu)) tinh - hanh dong luan nang thuong ((manh toan) OR (anh tuan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo cuu) or (theo chu)) tinh - hanh dong luan nang thuong ((manh toan) OR (anh tuan)) tap".
• Adding a wildcard symbol may retrieve word variants: ((theo cuu) or (theo chu)) tinh - hanh dong luan nang thuong ((manh toan) OR (anh tuan)) tap*.