Perhaps you should try some spelling variations:
thanh gian » thanh giang, thach giang, thanh san
ve triet » va trien, su triet
va thanh » gia thanh, ban thanh, va tinh
sach ty » sach tu, sach thu, xach tay
gian ve » gian viet
cac luc » cau luc, coc luc, cac nuoc
hieu va » lieu va, hieu qua
sang ma » tang ma, nang ma, sang tao
lang xa » lang ha, dang xay, lang van
luc va » duc va, tuc va, loc va

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) OR (sach y)) ((lang xa) or (sang ma)) hoi. hieu va cac luc va thanh gian ve triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ty) OR (sach y)) ((lang xa) OR (sang ma)) hoi. hieu va cac luc va thanh gian ve triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach y)) ((lang xa) or (sang ma)) hoi. hieu va cac luc va thanh gian ve triet".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach y)) ((lang xa) or (sang ma)) hoi. hieu va cac luc va thanh gian ve triet*.