Perhaps you should try some spelling variations:
trien thuat » thien thuat, trien hoat, chien thuat
tran thuat » trong thuat, tran tuan, tran thuy
nhung cong » dung cong, thong cong, hang cong
phap tinh » phap sinh, phap tieng, phap tang
cong bang » cuong bang, dong bang, hong bang
bang phan » nang phan, bang nhan, bang thanh
thi phap » theo phap, thi hai, thi ha
phan cau » phan dau, phan cac, phan tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thi phap tinh - hanh ((tran thuat) or (trien thuat)) nhung cong bang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thi phap tinh - hanh ((tran thuat) OR (trien thuat)) nhung cong bang phan cau.
• Adding a wildcard symbol may retrieve word variants: thi phap tinh - hanh ((tran thuat) or (trien thuat)) nhung cong bang phan cau*.