Perhaps you should try some spelling variations:
nhien viet » nhin viet, nghiep viet, trien viet
nhieu viec » hieu viec
va trinh » van trinh, va tinh, lap trinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va
di cua » doi cua, de cua, do cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky lang xa hoi. ((nhieu viec) or (nhien viet)) cam xuc va trinh ((di cua) OR (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky lang xa hoi. ((nhieu viec) OR (nhien viet)) cam xuc va trinh ((di cua) OR (dai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky lang xa hoi. ((nhieu viec) or (nhien viet)) cam xuc va trinh ((di cua) OR (dai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky lang xa hoi. ((nhieu viec) or (nhien viet)) cam xuc va trinh ((di cua) OR (dai cua)) tre*.