Perhaps you should try some spelling variations:
nhung cong » thong cong, hang cong, nhung don
theo tien » theo tieu, thuc tien, theo tcvn
tien hanh » tien thanh, hien hanh, tien anh
trinh cua » tinh cua, trinh luat, trinh quan
trinh han » trinh quan
dung cong » dung trong
dan phan » doan phan, dan chan, van phan
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 tien hanh - hanh ((trinh cua) or (trinh han)) ((nhung cong) or (dung cong)) dan phan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tien hanh - hanh ((trinh cua) OR (trinh han)) ((nhung cong) OR (dung cong)) dan phan cau.
• Adding a wildcard symbol may retrieve word variants: theo tien hanh - hanh ((trinh cua) or (trinh han)) ((nhung cong) or (dung cong)) dan phan cau*.