Perhaps you should try some spelling variations:
kham cuoc » khac cuoc, khuat cuoc, nhan cuoc
van hanh » van thanh, ban hanh, van anh
hieu sau » hieu suat, tieu su, hieu va
cuoc van » cuoi van, luoc van, quoc van
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu vu » hieu va, hieu ve, dieu vu
hanh di » hanh vi, hanh de, hang di
hieu su » tieu su, hieu so, hieu suat
sach ky » sac ky, sach y, sach ty
di cua » dai cua, doi cua, de cua
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 nang xa hoi. ((hieu vu) or (((hieu su) OR (hieu sau)))) kham cuoc van hanh di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. ((hieu vu) OR (((hieu su) OR (hieu sau)))) kham cuoc van hanh di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. ((hieu vu) or (((hieu su) OR (hieu sau)))) kham cuoc van hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. ((hieu vu) or (((hieu su) OR (hieu sau)))) kham cuoc van hanh di cua te*.