Perhaps you should try some spelling variations:
sach thue » sach thieu, sach tham, cach thuc
tang van » dang van, hoang van, trong van
sach thu » sach thieu, sach tham, cach thuc
cao suc » cao su, cao duc
tinh va » tich va, trinh van, trinh vat
van hoi » van hoa, van hoc, van hoe
hieu va » lieu va, hieu qua
cao xuc » cam xuc, cao duc, chat xuc
va tinh » may tinh
va cua » va chua, via cua, ca cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: so ((sach thu) OR (sach thue)) tang van hoi. hieu va ((cao xuc) or (cao suc)) va tinh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach thu) OR (sach thue)) tang van hoi. hieu va ((cao xuc) OR (cao suc)) va tinh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach thu) OR (sach thue)) tang van hoi. hieu va ((cao xuc) or (cao suc)) va tinh va cua te".
• Adding a wildcard symbol may retrieve word variants: so ((sach thu) OR (sach thue)) tang van hoi. hieu va ((cao xuc) or (cao suc)) va tinh va cua te*.