Perhaps you should try some spelling variations:
tien trinh » tien thinh, bien tinh, tien thanh
trinh dinh » trinh kinh, trinh sinh, trinh dung
tu trinh » tu tinh, tieu trinh, qua trinh
ton giao » toan giao, hoc giao, so giao
sinh su » hinh su, sinh tu, sinh so
tinh su » trinh su, hinh su, tinh tu
dinh su » dinh so, hinh su, dinh cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: (( tien trinh ((sinh su) OR (tinh su)) - so giai ) or ( tu trinh dinh su - ton giao ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tien trinh ((sinh su) OR (tinh su)) - so giai ) OR ( tu trinh dinh su - ton giao )).
• The words AND, OR and NOT may confuse the search; try adding quotes: "(( tien trinh ((sinh su) OR (tinh su)) - so giai ) or ( tu trinh dinh su - ton giao ))".
• Adding a wildcard symbol may retrieve word variants: (( tien trinh ((sinh su) OR (tinh su)) - so giai ) or ( tu trinh dinh su - ton giao ))*.