Perhaps you should try some spelling variations:
hieu viec » nhieu viec, hieu ve, sieu viet
trinh di » trinh do, trinh dien, trinh dinh
thu sach » thuat sach, thuoc sach, thu hoach
va trinh » van trinh, va tinh, lap trinh
viec cam » viec lam, viec cua, viec va
tu sach » su sach, te sach, tu cach
cua tre » cua te, cuu tre, cua triet
long ha » dong ha, cong ha, dong hoa
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va
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: ((tu sach) or (thu sach)) ky ((lang xa) or (long ha)) hoi. hieu viec cam xuc va trinh di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (thu sach)) ky ((lang xa) OR (long ha)) hoi. hieu viec cam xuc va trinh di cua tre.
• Adding a wildcard symbol may retrieve word variants: ((tu sach) or (thu sach)) ky ((lang xa) or (long ha)) hoi. hieu viec cam xuc va trinh di cua tre*.