Perhaps you should try some spelling variations:
luat tuc » luat thue
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
ve luat » va luat, ve thuat
su tien » su hien, tu tieng, dau tien
sai ky » sac ky
tuc va » thuc va, truc va, tuc xa
va dao » ca dao
dao ve » bao ve, dap ve, dau ve
kien » bien, vien, dien

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

• Performing a fuzzy search may retrieve terms with similar spellings: te ((sai ky) or (cac ky)) nang xa hoi. hieu ve luat tuc va dao ve ((su tien) OR (su kien))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sai ky) OR (cac ky)) nang xa hoi. hieu ve luat tuc va dao ve ((su tien) OR (su kien)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sai ky) or (cac ky)) nang xa hoi. hieu ve luat tuc va dao ve ((su tien) OR (su kien))".
• Adding a wildcard symbol may retrieve word variants: te ((sai ky) or (cac ky)) nang xa hoi. hieu ve luat tuc va dao ve ((su tien) OR (su kien))*.