Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
tinh moi » dinh moi, tinh doi, sinh moi
duoc lac » duoc lam, duoc cac, duoc luan
moi cua » hoi cua, doi cua, moi quan
va tinh » may tinh
su sach » so sach, vu sach
hieu va » hieu qua
ky dang » ky nang, ky danh
1 danh » 2 danh
lac va » loc va, luc va, tac va

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 ((ky dang) or (1 danh)) xa hoi. ((hieu va) or (lieu va)) duoc lac va tinh moi cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky dang) OR (1 danh)) xa hoi. ((hieu va) OR (lieu va)) duoc lac va tinh moi cua viet.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky dang) or (1 danh)) xa hoi. ((hieu va) or (lieu va)) duoc lac va tinh moi cua viet*.