Perhaps you should try some spelling variations:
ve triet » va trien, su triet
toc sach » hoc sach, doc sach, thuoc sach
dung de » dung he, dung dat
va dung » van dung, va duong, vat dung
thuc va » thuc vat, thuc dan, thuc day
ky lang » ky nang, ky dang, ky tang
lang xa » lang ha, dang xay, lang van
te sac » te sach, te cac, te san
va am » va lam, va cam

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) or (toc sach)) ky lang xa hoi. hieu ((ve am) or (va am)) thuc va dung de ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sac) OR (toc sach)) ky lang xa hoi. hieu ((ve am) OR (va am)) thuc va dung de ve triet.
• Adding a wildcard symbol may retrieve word variants: ((te sac) or (toc sach)) ky lang xa hoi. hieu ((ve am) or (va am)) thuc va dung de ve triet*.