Perhaps you should try some spelling variations:
luc luan » ly luan, tu luan
gay thoi » may thoi, tay thoi, ngay tuoi
te sach » toc sach
ky dang » ky nang, ky danh
hanh va » hang va, hanh vi
tay hoi » tay ho, tao hoi, tay thai
hieu le » hieu ve, hieu he, hieu ly
sach ky » sac ky, sach y, sach ty
va cua » va chua, via cua, ca cua
le cap » le cau
cua te » cua tu

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 ky dang ((gay thoi) or (tay hoi)). hieu le cap ((nuoc luan) OR (luc luan)) hanh va cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky dang ((gay thoi) OR (tay hoi)). hieu le cap ((nuoc luan) OR (luc luan)) hanh va cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky dang ((gay thoi) or (tay hoi)). hieu le cap ((nuoc luan) OR (luc luan)) hanh va cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky dang ((gay thoi) or (tay hoi)). hieu le cap ((nuoc luan) OR (luc luan)) hanh va cua te*.