Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach cam » sach cap, mach cam, sach tham
cham xuc » chat xuc, cham soc, chao xu
thanh di » thanh doi, thanh de, thanh do
cau tren » cu tren, dau tren, ca tren
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
di cau » da cau, diem cau

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach cam nang xa hoi. hieu ve ((((cham xuc) OR (pham duc))) or (cam xuc)) ban thanh di cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach cam nang xa hoi. hieu ve ((((cham xuc) OR (pham duc))) OR (cam xuc)) ban thanh di cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach cam nang xa hoi. hieu ve ((((cham xuc) OR (pham duc))) or (cam xuc)) ban thanh di cau tren".
• Adding a wildcard symbol may retrieve word variants: tu sach cam nang xa hoi. hieu ve ((((cham xuc) OR (pham duc))) or (cam xuc)) ban thanh di cau tren*.