Perhaps you should try some spelling variations:
nhieu viec » hieu viec, nhien viet
may trinh » may tinh, lap trinh, quy trinh
cua triet » cua viet, su triet, va triet
viec cam » viec lam, viec cua, viec va
cam phuc » cam phu, cau phuc, nam phuc
phuc may » hoc may, chua may, truc may
trinh di » trinh do, trinh dien, trinh dinh
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
cua te » cua tu

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 dang xa hoi. nhieu viec cam phuc may trinh di ((cua triet) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky dang xa hoi. nhieu viec cam phuc may trinh di ((cua triet) OR (cua te)).
• Adding a wildcard symbol may retrieve word variants: tu sach ky dang xa hoi. nhieu viec cam phuc may trinh di ((cua triet) or (cua te))*.