Perhaps you should try some spelling variations:
va thanh » gia thanh, ban thanh, va tinh
vu sach » su sach, vu khach
ky dang » ky nang, ky danh
dang xa » dang xay, lang xa, dang ha
hieu ve » hieu va, hieu van
cam duc » cam xuc, cao duc, pham duc
via cua » gia cua, gian cua, giau cua
ve cam » ve cham, ve cac, va cam
va cua » va chua, ca cua, ma 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) or (vu bach)) ky dang xa hoi. hieu ve cam duc va thanh ((va cua) OR (via cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((vu sach) OR (vu bach)) ky dang xa hoi. hieu ve cam duc va thanh ((va cua) OR (via cua)) te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((vu sach) or (vu bach)) ky dang xa hoi. hieu ve cam duc va thanh ((va cua) OR (via cua)) te".
• Adding a wildcard symbol may retrieve word variants: ((vu sach) or (vu bach)) ky dang xa hoi. hieu ve cam duc va thanh ((va cua) OR (via cua)) te*.