Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cua triet » cua viet, va triet
bat thanh » ban thanh, bac thanh, dat thanh
su triet » su viet, su tien, ve triet
luc bat » suc bat, luc nhat, luat bat
te sach » toc sach
sach ty » sach y, sach tu, sach thu
van cam » van nam, van cau, van dam
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang
van lam » van nam

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ty nang xa hoi. hieu ((van cam) or (van lam)) luc bat thanh dai ((cua triet) OR (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ((van cam) OR (van lam)) luc bat thanh dai ((cua triet) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ((van cam) or (van lam)) luc bat thanh dai ((cua triet) OR (su triet))".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((van cam) or (van lam)) luc bat thanh dai ((cua triet) OR (su triet))*.