Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh dat
sach tham » sach nha
sach thu » sach thue, sach thieu, cach thuc
va thanh » gia thanh, ban thanh, va tinh
tang van » dang van, hoang van, trong van
hieu va » lieu va, hieu qua
van hoi » van hoa, van hoc, van hoe
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
cua tu » cua tuc, cua cu, cua te
cua su » qua su

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 tham)) tang van hoi. hieu va cam xuc va thanh dai ((cua tu) OR (cua su))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach thu) OR (sach tham)) tang van hoi. hieu va cam xuc va thanh dai ((cua tu) OR (cua su)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach thu) or (sach tham)) tang van hoi. hieu va cam xuc va thanh dai ((cua tu) OR (cua su))".
• Adding a wildcard symbol may retrieve word variants: so ((sach thu) or (sach tham)) tang van hoi. hieu va cam xuc va thanh dai ((cua tu) OR (cua su))*.