Perhaps you should try some spelling variations:
tinh vai » tinh va, tinh hai, tinh bai
toc sach » hoc sach, doc sach, thuoc sach
dang van » hoang van, hang va
va tinh » may tinh
ca viet » va viet, co viet, hoa viet
van hoi » van hoa, van hoc, van hoe
ky dang » ky nang, ky danh
su cao » cu cao, vu cao, su co
xuc va » duc va, tuc va, luc va
vai ca » vai cac, vai cua, bai ca
su cam » su nam, su can, su lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((te sach) or (toc sach)) ky dang van hoi. hieu ((su cam) OR (su cao)) xuc va tinh vai ca viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) ky dang van hoi. hieu ((su cam) OR (su cao)) xuc va tinh vai ca viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) or (toc sach)) ky dang van hoi. hieu ((su cam) OR (su cao)) xuc va tinh vai ca viet".
• Adding a wildcard symbol may retrieve word variants: ((te sach) or (toc sach)) ky dang van hoi. hieu ((su cam) OR (su cao)) xuc va tinh vai ca viet*.