Perhaps you should try some spelling variations:
hanh lai » hanh lam, hanh tai, thanh lap
thi van » thi lan, thi hanh, thi nang
lai cuu » lai cua, lai chau, lai cuoc
su sach » so sach, vu sach
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
cuu tre » cua tre, cau tren, cau treo
sach 2 » sach y
loc va » hoc va
luc va » duc va, tuc va
ma hoi » mai hoi, xa hoi, ma hoa
2 nang » v nang

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach 2 nang ma hoi. ((hieu ve) or (thi van)) thanh ((loc va) or (luc va)) hanh lai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach 2 nang ma hoi. ((hieu ve) OR (thi van)) thanh ((loc va) OR (luc va)) hanh lai cuu tre.
• Adding a wildcard symbol may retrieve word variants: su sach 2 nang ma hoi. ((hieu ve) or (thi van)) thanh ((loc va) or (luc va)) hanh lai cuu tre*.