Perhaps you should try some spelling variations:
sach ty » sach tu, sach thu, xach tay
hanh de » hanh ve, hanh kem
hanh di » hanh vi, hang di, danh di
luc van » luoc van, luu van, duc van
cau luc » cau truc, cau phuc
cu tren » tu tren, dua tren
nang xa » nang x, lang xa, nang ma
va cau » van cau, va cac, va dau

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

• Performing a fuzzy search may retrieve terms with similar spellings: su ((sach ty) or (sach y)) nang xa hoi. lieu va cau luc van ((hanh di) OR (hanh de)) cu tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su ((sach ty) OR (sach y)) nang xa hoi. lieu va cau luc van ((hanh di) OR (hanh de)) cu tren*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su ((sach ty) or (sach y)) nang xa hoi. lieu va cau luc van ((hanh di) OR (hanh de)) cu tren*".