Perhaps you should try some spelling variations:
cach thuc » anh thuc, cac thu
thuc day » thuc dan, thuc vat
day dang » da dang, dai dang, day dan
hieu va » lieu va
dang de » dang deo, dung de, dang do
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
de cua » le cua, te cua, dieu cua
cua te » cua tu
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 sai ky nang x hoi. ((hieu va) or (hieu qua)) cach thuc day dang de cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sai ky nang x hoi. ((hieu va) OR (hieu qua)) cach thuc day dang de cua te.
• Adding a wildcard symbol may retrieve word variants: vu sai ky nang x hoi. ((hieu va) or (hieu qua)) cach thuc day dang de cua te*.