Perhaps you should try some spelling variations:
thuoc sach » hoc sach, nuoc sach, thuat sach
hieu cao » chieu cao, hieu cac, hieu ca
van tuan » van quan, van ban, anh tuan
chat xuc » chat huu, cam xuc, chao xu
hieu luc » hieu luat, hieu qua
sach ty » sach y, sach tu, sach thu
hang ha » hang hoa, hang hai, hoang ha
xuc van » duc van, luc van, vuc van
ty hang » ly hang, ty xang, thi hang
ha hoi » hoa hoi, ha noi, xa hoi
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: thuoc sach ty hang ha hoi. ((hieu cao) or (hieu luc)) chat xuc van tuan ((vi cua) or (di cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuoc sach ty hang ha hoi. ((hieu cao) OR (hieu luc)) chat xuc van tuan ((vi cua) OR (di cua)) tre.
• Adding a wildcard symbol may retrieve word variants: thuoc sach ty hang ha hoi. ((hieu cao) or (hieu luc)) chat xuc van tuan ((vi cua) or (di cua)) tre*.