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, nhung don
phap tinh » phap sinh, phap tieng, phap tang
hang cong » dang cong, hang nong, bang cong
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) OR (hang 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) OR (hang cong)) bang phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thi phap tinh - hanh ((tran thuat) or (trien thuat)) ((nhung cong) OR (hang cong)) bang phan cau".
• Adding a wildcard symbol may retrieve word variants: thi phap tinh - hanh ((tran thuat) or (trien thuat)) ((nhung cong) OR (hang cong)) bang phan cau*.