Perhaps you should try some spelling variations:
te sach » toc sach
sang ma » tang ma, sang tao, mang may
nang ma » tang ma, nang cao, mang may
hieu va » lieu va, hieu qua
xuc van » luc van, vuc van, xuc ban
duc van » duc va, duc tan, duc manh
hanh di » hanh vi, hanh de, hang di
di cua » dai cua, doi cua, de cua
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 y ((sang ma) OR (nang ma)) hoi. hieu va cac ((xuc van) or (duc van)) hanh di cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach y ((sang ma) OR (nang ma)) hoi. hieu va cac ((xuc van) OR (duc van)) hanh di cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach y ((sang ma) OR (nang ma)) hoi. hieu va cac ((xuc van) or (duc van)) hanh di cua cu*".