Perhaps you should try some spelling variations:
trang xa » trang va, trang ha, trong xa
toc sach » hoc sach, doc sach, thuoc sach
dinh lam » dinh van, tinh lao
truc va » thuc va, thuc vat, trung va
tang xa » tang ma, lang xa, tang ha
lam cua » nam cua, lam chat
hieu va » lieu va, hieu qua
sach ky » sac ky, sach y, sach ty
va cau » van cau, va cac, va dau
luc va » duc va, tuc va, loc va
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: toc sach ky ((tang xa) OR (trang xa)) hoi. hieu va cau ((luc va) or (truc va)) dinh lam cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: toc sach ky ((tang xa) OR (trang xa)) hoi. hieu va cau ((luc va) OR (truc va)) dinh lam cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "toc sach ky ((tang xa) OR (trang xa)) hoi. hieu va cau ((luc va) or (truc va)) dinh lam cua te".
• Adding a wildcard symbol may retrieve word variants: toc sach ky ((tang xa) OR (trang xa)) hoi. hieu va cau ((luc va) or (truc va)) dinh lam cua te*.