Perhaps you should try some spelling variations:
thanh le » thinh le, thanh ve, thanh de
luoc can » luc canh, hoc can, luoc dai
luu van » cuu van, luan van, luu hanh
qua cam » qua cham, qua cac, qua ca
te sach » toc sach
ly nang » ky nang, ly hang, ly vang
cua tre » cua te, cuu tre, cua triet
ma hoi » mai hoi, xa hoi, ma hoa
y nang » ky nang, v nang, may 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 ((y nang) or (ly nang)) ma hoi. hieu qua cam ((luoc can) or (luu van)) thanh le cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((y nang) OR (ly nang)) ma hoi. hieu qua cam ((luoc can) OR (luu van)) thanh le cua tre.
• Adding a wildcard symbol may retrieve word variants: te sach ((y nang) or (ly nang)) ma hoi. hieu qua cam ((luoc can) or (luu van)) thanh le cua tre*.