Perhaps you should try some spelling variations:
hieu vien » hieu viec, thieu nien, hieu tieng
hieu hien » bieu hien, dieu hien, chieu chien
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
sach ty » sach y, sach tu, sach thu
hang xa » hoang xa, hang va, hang ca
sach ly » sach y, sach lo, sach hay
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
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: thuat ((sach ly) or (sach ty)) hang xa hoi. ((hieu vien) OR (hieu hien)) cac xuc va hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat ((sach ly) OR (sach ty)) hang xa hoi. ((hieu vien) OR (hieu hien)) cac xuc va hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat ((sach ly) or (sach ty)) hang xa hoi. ((hieu vien) OR (hieu hien)) cac xuc va hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) or (sach ty)) hang xa hoi. ((hieu vien) OR (hieu hien)) cac xuc va hanh vi cua te*.