Perhaps you should try some spelling variations:
thien van » thi van
hang dien » quang dien, dang dieu, nhan dien
va triet » va thiet, va trien, ve triet
thuc day » thuc dan, thuc vat
nang xa » nang x, lang xa, nang ma
thuc va » thuc vat, thuc dan
hang di » hang doi, hang vi, hang dich
tu can » tu ban, tu cac, thu canh
can ky » van ky, dan ky, ban ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu can ky nang xa hoi. thien van nam ((thuc va) OR (thuc day)) ((hang di) or (hang dien)) va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu can ky nang xa hoi. thien van nam ((thuc va) OR (thuc day)) ((hang di) OR (hang dien)) va triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu can ky nang xa hoi. thien van nam ((thuc va) OR (thuc day)) ((hang di) or (hang dien)) va triet".
• Adding a wildcard symbol may retrieve word variants: tu can ky nang xa hoi. thien van nam ((thuc va) OR (thuc day)) ((hang di) or (hang dien)) va triet*.