Perhaps you should try some spelling variations:
cua triet » cua viet, va triet
hoc sachh » doc sach, hoc cach, toc sach
hoc sach » hoc sinh, hoc cac, hoc anh
va thanh » gia thanh, ban thanh, va tinh
thanh vi » hanh vi, thanh va, thanh ve
su triet » su viet, su tien, ve triet
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
cua lao » cu lao, ca lao, cua dao
ve cua » le cua, de cua, te cua
lao va » tao va, cao va, bao va

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sach) or (hoc sachh)) ky nang xa hoi. hieu ve cua lao va thanh vi ((cua triet) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sach) OR (hoc sachh)) ky nang xa hoi. hieu ve cua lao va thanh vi ((cua triet) OR (su triet)).
• Adding a wildcard symbol may retrieve word variants: ((hoc sach) or (hoc sachh)) ky nang xa hoi. hieu ve cua lao va thanh vi ((cua triet) or (su triet))*.