Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
cua triet » cua viet, su triet, va triet
va thanh » gia thanh, ban thanh, va tinh
dua tren » dung tren
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
tang ma » mang may, tang van
lang xa » lang ha, dang xay, lang van
cam duc » cam xuc, cao duc, pham duc
va cam » va cham, va cac, va cao

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 ((tang ma) or (lang xa)) hoi. lieu va cam duc va thanh tai ((dua tren) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty ((tang ma) OR (lang xa)) hoi. lieu va cam duc va thanh tai ((dua tren) OR (cua triet)).
• Adding a wildcard symbol may retrieve word variants: tu sach ty ((tang ma) or (lang xa)) hoi. lieu va cam duc va thanh tai ((dua tren) or (cua triet))*.