Perhaps you should try some spelling variations:
trong tuong » trong thuong, trong luong, tuong tuong
thanh trung » thanh tung
hoc thiet » hoc thieu, hoc thuyet, hoc hien
tuong den » huong den, tuong dan, thong den
trung co » trung bo, trong co, truong cao
co trong » ro trong, cong trong, dot trong
den phan » dien phan, dan phan, de phan

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc thiet) or (toc thieu)) tinh - thanh trung co trong tuong den phan tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (toc thieu)) tinh - thanh trung co trong tuong den phan tu.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (toc thieu)) tinh - thanh trung co trong tuong den phan tu*.