Perhaps you should try some spelling variations:
ban hanh » ban hang
dang xay » dang van, van xay
vu sach » vu bach, su sach, vu khach
sach ky » sac ky, sach y, sach ty
cam cuc » cham cuu, pham cuc
xay hoi » xa hoi, tay hoi, cay phoi
hieu va » lieu va, hieu qua
ky dang » ky nang, ky danh
cua tre » cua te, cuu tre, cua triet
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky dang xay hoi. hieu va ((((cam cuc) OR (cam xuc))) or (pham duc)) ban hanh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky dang xay hoi. hieu va ((((cam cuc) OR (cam xuc))) OR (pham duc)) ban hanh vi cua tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "vu sach ky dang xay hoi. hieu va ((((cam cuc) OR (cam xuc))) or (pham duc)) ban hanh vi cua tre*".