Perhaps you should try some spelling variations:
cac thuc » cach thuc, cac thu, can thuc
thuc day » thuc dan, thuc vat
day dang » da dang, dai dang, day dan
hieu ve » hieu va, hieu van
vu sai » vu hai, vu san, vu dai
sai ky » sac ky
ve cac » va cac, vien cac
de cua » te cua, dieu cua
le cua » ly cua
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 ve cac thuc day dang ((de cua) OR (le cua)) tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sai ky nang x hoi. hieu ve cac thuc day dang ((de cua) OR (le cua)) tre".
• Adding a wildcard symbol may retrieve word variants: vu sai ky nang x hoi. hieu ve cac thuc day dang ((de cua) OR (le cua)) tre*.