Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
thuc gia » thuc giai, thue gia, thuc dia
nang xa » nang x, lang xa, nang ma
hieu he » hieu ve, hiem he, hieu le
vai cua » dai cua, hai cua, lai cua
doi cua » dai cua
hoi cua » hoi chuc
so sac » so sach, so dac
sac ky » cac ky, sai ky
he nam » ha nam, nghe nam

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: so sac ky nang xa hoi. hieu he nam thuc gia thanh ((vai cua) or (((doi cua) OR (hoi cua)))) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so sac ky nang xa hoi. hieu he nam thuc gia thanh ((vai cua) OR (((doi cua) OR (hoi cua)))) tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sac ky nang xa hoi. hieu he nam thuc gia thanh ((vai cua) or (((doi cua) OR (hoi cua)))) tre*".