Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
cua triet » cua viet, su triet
dat thanh » dao thanh, dat khanh, dang thanh
va triet » va thiet, va trien, ve triet
luc dat » luc bat, luc dai, luc nhat
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 dat thanh dai ((cua triet) or (va 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 dat thanh dai ((cua triet) OR (va triet)).
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((van cam) or (van lam)) luc dat thanh dai ((cua triet) or (va triet))*.