Perhaps you should try some spelling variations:
cham thuc » nham thuc, pham thuc, tham thuc
day nhanh » day thanh, duy nhanh, dac nhan
day manh » van manh, duc manh, ha manh
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
ve cham » va cham, ve chat, vu cham
vu sac » vu sach, vu san, va sac
sac ky » cac ky, sai ky
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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 x hoi. hieu ve cham thuc ((day manh) or (day nhanh)) de ((cua tre) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang x hoi. hieu ve cham thuc ((day manh) OR (day nhanh)) de ((cua tre) OR (cua tu)).
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang x hoi. hieu ve cham thuc ((day manh) or (day nhanh)) de ((cua tre) or (cua tu))*.