Perhaps you should try some spelling variations:
danh viet » anh viet, ninh viet, nang viet
dinh viet » ninh viet, trinh viet, sinh vien
thuc va » thuc vat, thuc dan, thuc day
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
ve chat » va chat, van chat
ve tai » te tai, de tai, le tai
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu cac ky lang xa hoi. hieu ((ve tai) or (ve chat)) thuc va ((dinh viet) OR (danh viet)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu cac ky lang xa hoi. hieu ((ve tai) OR (ve chat)) thuc va ((dinh viet) OR (danh viet)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu cac ky lang xa hoi. hieu ((ve tai) or (ve chat)) thuc va ((dinh viet) OR (danh viet)) cua te".
• Adding a wildcard symbol may retrieve word variants: tu cac ky lang xa hoi. hieu ((ve tai) or (ve chat)) thuc va ((dinh viet) OR (danh viet)) cua te*.