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