Perhaps you should try some spelling variations:
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
cham xuc » cam xuc, chat xuc, cham soc
hieu van » hieu va, thien van, lieu va
vai cua » dai cua, hai cua, lai cua
va danh » va dinh, va dan, va hanh
su sach » so sach, vu sach
hieu ve » hieu va
nang ma » tang ma, sang ma, nang cao
xuc va » duc va, tuc va, luc va
ma hoi » mai hoi, xa hoi, ma hoa

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 thu nang ma hoi. ((hieu ve) or (hieu van)) cham xuc va danh ((vai cuu) or (vai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach thu nang ma hoi. ((hieu ve) OR (hieu van)) cham xuc va danh ((vai cuu) OR (vai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: su sach thu nang ma hoi. ((hieu ve) or (hieu van)) cham xuc va danh ((vai cuu) or (vai cua)) tre*.