Perhaps you should try some spelling variations:
thien van » thi van
cau treo » cau theo, cau tren, cau triet
ly quang » le quang, vu quang
sach ly » sach y, sach lo, sach ty
van cac » van hac, van cau, van bac
su sach » so sach, vu sach
luc va » tuc va, loc va
vi cau » va cau, ve cau, di cau
y ho » y hoc, ly ho, x ho
y ha » ly ha

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 ly quang ((y ho) or (y ha)). thien van cac ((luc va) OR (duc va)) hanh vi cau treo~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ly quang ((y ho) OR (y ha)). thien van cac ((luc va) OR (duc va)) hanh vi cau treo*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ly quang ((y ho) or (y ha)). thien van cac ((luc va) OR (duc va)) hanh vi cau treo*".