Perhaps you should try some spelling variations:
ban thanh » ban hanh, ban hang
sach thu » sach thue, sach thieu, sach tham
thu nang » thi nang, thu hang, thu bang
su sach » so sach, vu sach
su tien » su kien, tu tieng, dau tien
va hanh » van hanh, va thanh, va danh
hieu ve » hieu va, hieu van
nang xa » nang x, lang xa, nang ma
su hien » su kien, thu hien, nhu hien
ve cam » ve cham, ve cac, va cam

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

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