Perhaps you should try some spelling variations:
luc ngan » luc nganh, luc nhan, luat ngan
hang doi » hang di, hang loi, huong doi
cua tren » dua tren, ca tren, cua tre
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu ve » hieu va, hieu van
cau luc » cau truc, cau phuc
doi cua » dai cua, hoi cua
ve cau » ke cau, va cau, ve cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ty ((nang x) or (lang xa)) hoi. hieu ve cau luc ngan hang doi cua tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((nang x) OR (lang xa)) hoi. hieu ve cau luc ngan hang doi cua tren*.