Perhaps you should try some spelling variations:
dat thanh » dao thanh, dat khanh, dang thanh
cam thuc » am thuc, nam thuc, cam thu
dao hanh » dao thanh, dang hanh, ban hanh
cua tre » cua te, cuu tre, cua triet
hieu va » lieu va, hieu qua
va cam » va cham, va cac, va cao
sac ky » cac ky, sai ky
di cua » dai cua, doi cua, de cua
vu sac » vu sach, vu san, va sac
o hoi » co hoi, o hoc, o hai
x hoi » xa hoi, x ho, 5 hoi

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) or (o hoi)). hieu va cam thuc ((dao hanh) or (dat thanh)) di cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sac ky nang ((x hoi) OR (o hoi)). hieu va cam thuc ((dao hanh) OR (dat thanh)) di cua tre.
• Adding a wildcard symbol may retrieve word variants: vu sac ky nang ((x hoi) or (o hoi)). hieu va cam thuc ((dao hanh) or (dat thanh)) di cua tre*.