Perhaps you should try some spelling variations:
trinh luan » trinh luat, trinh quan, trinh han
nhung cong » thong cong, hang cong, nhung don
theo tien » theo tieu, thuc tien, theo tcvn
tien hanh » tien thanh, hien hanh, tien anh
dung cong » dung trong
dan than » dan chan, ban than, van than
than cap » khan cap, thanh lap, thanh cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo tien hanh - hanh ((trinh luan) or (tinh chat)) ((nhung cong) or (dung cong)) dan than cap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tien hanh - hanh ((trinh luan) OR (tinh chat)) ((nhung cong) OR (dung cong)) dan than cap.
• Adding a wildcard symbol may retrieve word variants: theo tien hanh - hanh ((trinh luan) or (tinh chat)) ((nhung cong) or (dung cong)) dan than cap*.