Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
hanh lai » hanh lam, hanh tai, thanh lap
cham luc » cham soc, nhan luc, cham cuu
toc sach » hoc sach, doc sach, thuoc sach
nang ma » tang ma, sang ma, nang cao
sach va » sach xa, sach ha, sach dao
ve cham » va cham, ve chat, vu cham
nang xa » nang x, lang xa, mang xa
va hanh » van hanh, va thanh, va danh
cua tre » cua te, cuu tre, dua tren
hieu ve » hieu va, hieu van
luc va » duc va, tuc va, loc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: toc sach va ((nang xa) OR (nang ma)) hoi. hieu ve cham luc va hanh lai ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach va ((nang xa) OR (nang ma)) hoi. hieu ve cham luc va hanh lai ((cua tre) OR (cua triet))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach va ((nang xa) OR (nang ma)) hoi. hieu ve cham luc va hanh lai ((cua tre) or (cua triet))*".