Perhaps you should try some spelling variations:
te sach » toc sach
hanh di » hanh vi, hanh de, hang di
duc van » duc va, duc tan, duc manh
xuc van » luc van, vuc van, xuc ban
hieu ve » hieu va, hieu van
dai hoi » dai hoc, dai hai, dai moi
mai hoi » mai khoi, lai hoi, mai doi
ve cac » va cac, vien cac
y sang » _ sang, duy sang
di cua » dai cua, doi cua, de cua
cua tu » cua tuc, cua su, cua cu

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 y sang ((mai hoi) OR (dai hoi)). hieu ve cac ((xuc van) or (duc van)) hanh di cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y sang ((mai hoi) OR (dai hoi)). hieu ve cac ((xuc van) OR (duc van)) hanh di cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y sang ((mai hoi) OR (dai hoi)). hieu ve cac ((xuc van) or (duc van)) hanh di cua tu*".