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

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 (((duy nhanh) or (dac nhan)))) di 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 (((duy nhanh) OR (dac nhan)))) di cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang xa hoi. hieu ve cham thuc ((day hanh) or (((duy nhanh) or (dac nhan)))) di cua tre*.