Perhaps you should try some spelling variations:
khanh hoa » thanh hoa, hang hoa
lap hoat » tap hoa, dan hoat, lap dat
vu sach » vu bach, su sach, vu khach
va hanh » van hanh, va thanh, va danh
hieu va » lieu va, hieu qua
ky tang » ky nang, ky dang, kho tang
ky sang » ky nang, ky dang, duy sang
va cam » va cham, va cac, va cao
xuc va » duc va, tuc va, luc va
vi cua » vai cua, di cua
cua tu » cua tuc, cua su, cua cu

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 sang) or (ky tang)) ((lap hoat) or (khanh hoa)). hieu va cam xuc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ((ky sang) OR (ky tang)) ((lap hoat) OR (khanh hoa)). hieu va cam xuc va hanh vi cua tu.
• Adding a wildcard symbol may retrieve word variants: vu sach ((ky sang) or (ky tang)) ((lap hoat) or (khanh hoa)). hieu va cam xuc va hanh vi cua tu*.