Perhaps you should try some spelling variations:
thieu nien » thien nhien
hieu vien » hieu hien, hieu viec, hieu tieng
tu sach » thu sach, su sach, te sach
nang xa » nang x, lang xa, nang ma
va hanh » van hanh, va thanh, va danh
hanh di » hanh vi, hanh de, hang di
y nang » ky nang, ly nang, v nang
xuc va » duc va, tuc va, luc va
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 y nang xa hoi. ((hieu vien) OR (thieu nien)) cam xuc va hanh di cua te~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach y nang xa hoi. ((hieu vien) OR (thieu nien)) cam xuc va hanh di cua te".
• Adding a wildcard symbol may retrieve word variants: tu sach y nang xa hoi. ((hieu vien) OR (thieu nien)) cam xuc va hanh di cua te*.