Perhaps you should try some spelling variations:
thu sach » tu sach, thuat sach, thuoc sach
va thanh » gia thanh, ban thanh, le thanh
va tinh » may tinh
hieu ve » hieu va, hieu van
dang xa » dang xay, lang xa, dang ha
ky dang » ky nang, ky danh
su sach » so sach, vu sach
ve cam » ve cham, ve cac, va cam
vi cau » va cau, ve cau, di cau

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) or (su sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) OR (va tinh)) vi cau tao~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (su sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) OR (va tinh)) vi cau tao*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) or (su sach)) ky dang xa hoi. hieu ve cam xuc ((va thanh) OR (va tinh)) vi cau tao*".