Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
sach ty » sach y, sach tu, sach thu
hang xa » hoang xa, hang va, hang ca
sach ly » sach y, sach lo, sach hay
cac xuc » cam xuc, cac nuoc, chat xuc
va hanh » van hanh, va thanh, va danh
xuc va » duc va, tuc va, luc va
vi cua » vai cua
di cua » dai cua, doi cua, de cua

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 cac xuc va hanh ((vi cua) OR (di 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 cac xuc va hanh ((vi cua) OR (di 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 cac xuc va hanh ((vi cua) OR (di cua)) te".
• Adding a wildcard symbol may retrieve word variants: thuat ((sach ly) or (sach ty)) hang xa hoi. hieu vien cac xuc va hanh ((vi cua) OR (di cua)) te*.