Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
day nhanh » day thanh, duy nhanh, dac nhan
day hanh » day thanh, dao hanh, day manh
ve cham » va cham, ve chat, vu cham
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, do cua
de cua » le cua, te cua, dieu cua
vu sac » vu sach, vu san, va sac

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sac ky nang xa hoi. hieu ve cham thuc ((day hanh) or (day nhanh)) ((di cua) OR (de cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang xa hoi. hieu ve cham thuc ((day hanh) OR (day nhanh)) ((di cua) OR (de cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sac ky nang xa hoi. hieu ve cham thuc ((day hanh) or (day nhanh)) ((di cua) OR (de cua)) tre".
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. hieu ve cham thuc ((day hanh) or (day nhanh)) ((di cua) OR (de cua)) tre*.