Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
ban thanh » ban hanh, ban hang
toan cua » than cua, tan cua, doanh cua
chat cua » nhat cua, chat va, chat huu
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
lang xa » lang ha, dang xay, lang van
ky lang » ky nang, ky dang, ky tang
tu sach » thu sach, su sach, te sach
tu sac » tu cac, tu san, tu bac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu ve ((cam xuc) or (chat cua)) ban thanh toan cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu ve ((cam xuc) OR (chat cua)) ban thanh toan cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) OR (tu sach)) ky lang xa hoi. hieu ve ((cam xuc) or (chat cua)) ban thanh toan cua tre".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) OR (tu sach)) ky lang xa hoi. hieu ve ((cam xuc) or (chat cua)) ban thanh toan cua tre*.