Perhaps you should try some spelling variations:
thong thuong » thong thong, hang thuong, cong thuong
thanh duong » thanh huong, thanh cuong, thanh vuong
duong phan » dung phan, huong phan, muong phan
theo luong » tien luong
hoc thieu » toc thieu, hoc hien
ho chieu » theo chieu, mot chieu, doi chieu
dan phan » doan phan, dan chan, van phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((ho chieu) or (hoc thieu)) tinh - thanh duong phan ((thong thuong) or (theo luong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh duong phan ((thong thuong) OR (theo luong)) dan phan tu.
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh duong phan ((thong thuong) or (theo luong)) dan phan tu*.