Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
va trinh » van trinh, lap trinh, qua trinh
hoa cua » hoa chat, hoa xuat
va tinh » may tinh
su sach » vu sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
ty lang » tay lang, ty xang, ty hang
so sach » so sanh, bo sach, co sach
cac xuc » cam xuc, cac nuoc, chat xuc

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 sach)) ty lang xa hoi. hieu va cac xuc ((va trinh) or (va tinh)) hoa cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) ty lang xa hoi. hieu va cac xuc ((va trinh) OR (va tinh)) hoa cua viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) ty lang xa hoi. hieu va cac xuc ((va trinh) or (va tinh)) hoa cua viet".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) ty lang xa hoi. hieu va cac xuc ((va trinh) or (va tinh)) hoa cua viet*.