Perhaps you should try some spelling variations:
trinh dinh » trinh kinh, trinh sinh, trinh dung
thong cong » trong cong, tong cong, thong thong
cuu thong » cuu thuong, cuu tong, cuu chong
manh toan » thanh toan, anh tuan, tinh toan
ho chieu » theo chieu, hoc thieu, doi chieu
theo chu » theo chieu, cho chu, chao chu
dinh cuu » dinh chi
dan toan » van toan, dan than, xuan toan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (theo chu)) sang - trinh dinh cuu thong cong ((dan toan) OR (manh toan)) tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (theo chu)) sang - trinh dinh cuu thong cong ((dan toan) OR (manh toan)) tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (theo chu)) sang - trinh dinh cuu thong cong ((dan toan) OR (manh toan)) tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (theo chu)) sang - trinh dinh cuu thong cong ((dan toan) OR (manh toan)) tap*.