Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
thu sach » tu sach, thuat sach, thuoc sach
viec cac » vien cac, viec cua, viec lam
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang co » nang cao, nang doc, nang noi
hanh di » hanh vi, hanh de, hang di
tuc va » thuc va, truc va, thuc vat
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty nang co hoc. hieu viec cac ((duc va) or (((tuc va) or (tuc xa)))) hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty nang co hoc. hieu viec cac ((duc va) OR (((tuc va) OR (tuc xa)))) hanh di cua tu.
• Adding a wildcard symbol may retrieve word variants: thu sach ty nang co hoc. hieu viec cac ((duc va) or (((tuc va) or (tuc xa)))) hanh di cua tu*.