Perhaps you should try some spelling variations:
thuc day » thuc dan, thuc vat
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve luat » va luat, ve thuat
su tien » su kien, su hien, tu tieng
tuc va » thuc va, truc va, tuc xa
dau ve » dap ve
ve su » va su

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. hieu ve luat ((tuc va) or (thuc day)) dau ve su tien~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu ve luat ((tuc va) OR (thuc day)) dau ve su tien.
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ve luat ((tuc va) or (thuc day)) dau ve su tien*.