Perhaps you should try some spelling variations:
thanh le » thinh le, thanh ve, thanh de
toc sach » hoc sach, doc sach, thuoc sach
luoc van » luoc can, luoc va, luot van
hieu van » hieu va, thien van, lieu va
luc van » luu van, duc van, luc va
van cam » van nam, van lam, van cau
nang ma » tang ma, sang ma, nang cao
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, ly nang, v nang
le cua » ly cua

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) OR (toc sach)) y nang ma hoi. hieu van cam ((luc van) or (luoc van)) thanh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((te sach) OR (toc sach)) y nang ma hoi. hieu van cam ((luc van) OR (luoc van)) thanh le cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((te sach) OR (toc sach)) y nang ma hoi. hieu van cam ((luc van) or (luoc van)) thanh le cua tre".
• Adding a wildcard symbol may retrieve word variants: ((te sach) OR (toc sach)) y nang ma hoi. hieu van cam ((luc van) or (luoc van)) thanh le cua tre*.