Perhaps you should try some spelling variations:
thanh le » thinh le, thanh ve, thanh de
luu van » cuu van, luan van, luu hanh
luc van » luoc van, duc van, luc va
sach ly » sach y, sach lo, sach hay
hieu va » lieu va, hieu qua
nang ma » tang ma, sang ma, nang cao
sach ty » sach y, sach tu, sach thu
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
va cam » va cham, va cac, va cao
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 ly) OR (sach ty)) nang ma hoi. hieu va cam ((luc van) or (luu van)) thanh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach ty)) nang ma hoi. hieu va cam ((luc van) OR (luu van)) thanh le cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) OR (sach ty)) nang ma hoi. hieu va cam ((luc van) or (luu van)) thanh le cua tre*".