Perhaps you should try some spelling variations:
thanh vai » thanh hai, thanh van, thanh tai
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
su sach » so sach, vu sach
hang xa » hoang xa, hang ca, lang xa
hieu va » lieu va, hieu qua
sach ty » sach y, sach tu, sach thu
cam duc » cam xuc, cao duc, pham duc
duc ban » duc tan, duc van, dua ban
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: su sach ty ((hang xa) OR (hang va)) hoi. hieu va cam duc ban thanh vai ((cua triet) or (hoa viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((hang xa) OR (hang va)) hoi. hieu va cam duc ban thanh vai ((cua triet) OR (hoa viet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty ((hang xa) OR (hang va)) hoi. hieu va cam duc ban thanh vai ((cua triet) or (hoa viet))".
• Adding a wildcard symbol may retrieve word variants: su sach ty ((hang xa) OR (hang va)) hoi. hieu va cam duc ban thanh vai ((cua triet) or (hoa viet))*.