Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
su sach » so sach, vu sach
luc bat » suc bat, luc nhat, luat bat
cua tre » cua te, cua triet, dua tren
cuu tre » cau tren, cau treo
sach ty » sach y, sach tu, sach thu
luc ban » duc ban, cuc ban, luc van
va chat » van chat, va phat, cao chat
hieu va » lieu va, hieu qua
tang ma » mang may, tang van
ty tang » tay tang, ty xang, ty hang

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 ty tang ma hoa. hieu va chat ((luc ban) OR (luc bat)) thanh tai ((cua tre) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty tang ma hoa. hieu va chat ((luc ban) OR (luc bat)) thanh tai ((cua tre) OR (cuu tre))*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty tang ma hoa. hieu va chat ((luc ban) OR (luc bat)) thanh tai ((cua tre) or (cuu tre))*".