Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
hanh voi » hanh vi, hanh noi, lanh voi
hanh moi » thanh moi, hanh noi, hanh mot
nang xa » nang x, nang ma, mang xa
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
ve cam » ve cham, ve cac, va cam
xuc va » duc va, tuc va, luc va

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach y ((nang xa) or (lang xa)) hoi. hieu ve cam xuc va ((hanh voi) OR (hanh moi)) hoa viet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach y ((nang xa) OR (lang xa)) hoi. hieu ve cam xuc va ((hanh voi) OR (hanh moi)) hoa viet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach y ((nang xa) or (lang xa)) hoi. hieu ve cam xuc va ((hanh voi) OR (hanh moi)) hoa viet".
• Adding a wildcard symbol may retrieve word variants: thu sach y ((nang xa) or (lang xa)) hoi. hieu ve cam xuc va ((hanh voi) OR (hanh moi)) hoa viet*.