Perhaps you should try some spelling variations:
thanh toan » thanh hoa, thanh san, tinh toan
hoang van » hang va
trinh tu » trinh ky, trinh do
su sach » so sach, vu sach
cua tre » cua te, cuu tre, cua triet
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
xuc va » duc va, tuc va, luc va
co xuc » co xuoc, co xua
va co » vo co

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 ((hoang van) or (lang xa)) hoi. hieu va co xuc va ((trinh tu) or (thanh toan)) cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ty ((hoang van) OR (lang xa)) hoi. hieu va co xuc va ((trinh tu) OR (thanh toan)) cua tre.
• Adding a wildcard symbol may retrieve word variants: su sach ty ((hoang van) or (lang xa)) hoi. hieu va co xuc va ((trinh tu) or (thanh toan)) cua tre*.