Perhaps you should try some spelling variations:
nhung trong » hung trong, nhung tuong, thuong trong
thanh trung » thanh tung
theo chieu » theo tieu, theo chu, thi chieu
tam nhung » tham nhung, cam nhung, nam nhung
trong van » trong cac
ho chieu » hoc thieu, doi chieu, mot chieu
ban tap » bai tap, han tap, ban tay
ban tai » van tai, han tai, ban thi

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((theo chieu) OR (ho chieu)) tinh - thanh trung tam nhung trong van ((ban tap) or (ban tai))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((theo chieu) OR (ho chieu)) tinh - thanh trung tam nhung trong van ((ban tap) OR (ban tai)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((theo chieu) OR (ho chieu)) tinh - thanh trung tam nhung trong van ((ban tap) or (ban tai))".
• Adding a wildcard symbol may retrieve word variants: ((theo chieu) OR (ho chieu)) tinh - thanh trung tam nhung trong van ((ban tap) or (ban tai))*.