Perhaps you should try some spelling variations:
thuc nam » thu nam, thuc pham, thuat nam
dinh dao » dinh dat, minh dao, dinh cao
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
dao huu » do huu
huu thu » huu thuc, huu nhu, cuu thu
y nang » ky nang, ly nang, v nang
xe nam » he nam, le nam
te nam » tu nam, he nam, tw nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach y nang xa hoi. hiem ((xe nam) OR (te nam)) thuc nam dinh dao huu thu~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. hiem ((xe nam) OR (te nam)) thuc nam dinh dao huu thu".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. hiem ((xe nam) OR (te nam)) thuc nam dinh dao huu thu*.