Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
tu sach » thu sach, su sach, te sach
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » va thanh, va danh, ban hanh
nang xa » nang x, lang xa, nang ma
hieu va » lieu va
sach v » sach va, sach y, sach 2
v nang » va nang, vu nang, van nang
di cua » dai cua, doi cua, de cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach v nang xa hoi. ((hieu va) or (hieu qua)) cac xuc ((va hanh) OR (van hanh)) di cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach v nang xa hoi. ((hieu va) OR (hieu qua)) cac xuc ((va hanh) OR (van hanh)) di cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach v nang xa hoi. ((hieu va) or (hieu qua)) cac xuc ((va hanh) OR (van hanh)) di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach v nang xa hoi. ((hieu va) or (hieu qua)) cac xuc ((va hanh) OR (van hanh)) di cua te*.