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 » thong cong, hang cong, nhung don
theo phap » thi phap
phap tinh » phap sinh, phap tieng, phap tang
dung cong » dung trong
bang phan » nang phan, bang nhan, bang thanh
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: theo phap tinh - hanh ((tran thuat) OR (trien thuat)) ((nhung cong) or (dung cong)) bang phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo phap tinh - hanh ((tran thuat) OR (trien thuat)) ((nhung cong) OR (dung cong)) bang phan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo phap tinh - hanh ((tran thuat) OR (trien thuat)) ((nhung cong) or (dung cong)) bang phan cau".
• Adding a wildcard symbol may retrieve word variants: theo phap tinh - hanh ((tran thuat) OR (trien thuat)) ((nhung cong) or (dung cong)) bang phan cau*.