Perhaps you should try some spelling variations:
cua viet » ca viet, hoa viet, cua vat
bien cac » dien cac, bien ca, hien cac
vien cac » vien bach, vien dai, vien da
nang ma » tang ma, sang ma, nang cao
ty nang » ky nang, ty xang, ty hang
sach ty » sach y, sach tu, sach thu
hanh di » hanh vi, hanh de, hang di
te sach » toc sach
ma hoi » mai hoi, xa hoi, ma hoa
xuc va » duc va, luc va, xac va
tuc va » thuc va, truc va, tuc xa
di cua » dai cua, doi cua, de cua

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 ty nang ma hoi. thieu ((bien cac) or (vien cac)) ((xuc va) or (tuc va)) hanh di cua viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang ma hoi. thieu ((bien cac) OR (vien cac)) ((xuc va) OR (tuc va)) hanh di cua viet.
• Adding a wildcard symbol may retrieve word variants: te sach ty nang ma hoi. thieu ((bien cac) or (vien cac)) ((xuc va) or (tuc va)) hanh di cua viet*.