Perhaps you should try some spelling variations:
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
hanh noi » ha noi, hanh vi, nang noi
noi cua » hoi cua, doi cua, moi cua
duc van » duc va, duc tan, duc manh
xuc van » luc van, vuc van, xuc ban
te sach » toc sach
sach lo » sach dao, sach doi, sach hoi
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
cua cu » cua chu, cua cau, cua su

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

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