Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
su sach » so sach, vu sach
so sanh » do sanh
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
nam duc » nam duoc, pham duc, nam thuc
va tinh » may tinh
tinh ve » trinh ve, tinh ven, dinh ve
va nam » van nam, ha nam, va nay
ve cua » le cua, de cua, te cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (so sanh)) ky dang xa hoi. lieu va nam duc va tinh ve cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sanh)) ky dang xa hoi. lieu va nam duc va tinh ve cua viet.
• Adding a wildcard symbol may retrieve word variants: ((su sach) or (so sanh)) ky dang xa hoi. lieu va nam duc va tinh ve cua viet*.