Perhaps you should try some spelling variations:
cua triet » cua viet, su triet
va triet » va thiet, va trien, ve triet
te sach » toc sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
hieu he » hieu ve, hiem he, hieu le
dan dai » dat dai, can dai, dan dat
he nam » ha nam, nghe nam
xe dan » ke dan, le dan, he dan

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

• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu he nam thu xe dan dai ((cua triet) OR (va triet))~".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu he nam thu xe dan dai ((cua triet) OR (va triet))*.