Perhaps you should try some spelling variations:
thuong huong » thuong phuong, thuong luong, thuong hung
thong huong » thong thuong, thong duong, thong thong
thanh dung » thanh duong, thanh tung, thanh hung
hoc thieu » toc thieu, hoc hien
dung phan » dung nhan, dung luan, dung ha
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 dung phan ((thuong huong) OR (thong huong)) dan phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - thanh dung phan ((thuong huong) OR (thong huong)) dan phan tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - thanh dung phan ((thuong huong) OR (thong huong)) dan phan tu".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - thanh dung phan ((thuong huong) OR (thong huong)) dan phan tu*.