Perhaps you should try some spelling variations:
hieu triet » hieu tiem, hieu tren
he triet » ve triet, chet triet, nha triet
hang tai » hang va, dung tai
nam thuc » nam thuoc, am thuc, nam thu
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
thuc va » thuc vat, thuc dan, thuc day
va hang » van hang, va nang, va lang
ve nam » he nam, va nam, le nam
sac ky » cac ky

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) or (sai ky)) nang xa hoi. hieu ve nam thuc va hang tai ((he triet) OR (hieu triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sac ky) OR (sai ky)) nang xa hoi. hieu ve nam thuc va hang tai ((he triet) OR (hieu triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sac ky) or (sai ky)) nang xa hoi. hieu ve nam thuc va hang tai ((he triet) OR (hieu triet))".
• Adding a wildcard symbol may retrieve word variants: te ((sac ky) or (sai ky)) nang xa hoi. hieu ve nam thuc va hang tai ((he triet) OR (hieu triet))*.