Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
quoc danh » quoc khanh, cuon danh, hoc danh
xuc danh » chuc danh, luoc danh, muc doanh
toan cua » than cua, tan cua, doanh cua
sang ky » sang kyo, dang ky, tang ky
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
cua tre » cua te, cuu tre, cua triet
san ky » van ky, dan ky, ban ky
ve cam » ve cham, ve cac, va cam

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

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