Perhaps you should try some spelling variations:
dan thanh » dang thanh, danh thanh, ban thanh
thuc dan » thuc hanh, hoc dan, thuc vat
cam thuc » am thuc, nam thuc, cam thu
hieu va » lieu va, hieu qua
moi cua » hoi cua, doi cua, moi quan
te sac » te sach, te cac, te san
sac ky » cac ky, sai ky
va cam » va cham, va cac, va cao
x hoi » xa hoi, o hoi, 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: te sac ky nang ((x hoi) or (x ho)). hieu va cam thuc dan thanh ((moi cua) or (hoi chuc)) triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sac ky nang ((x hoi) OR (x ho)). hieu va cam thuc dan thanh ((moi cua) OR (hoi chuc)) triet.
• Adding a wildcard symbol may retrieve word variants: te sac ky nang ((x hoi) or (x ho)). hieu va cam thuc dan thanh ((moi cua) or (hoi chuc)) triet*.