Perhaps you should try some spelling variations:
thanh tai » thanh hai, thanh toan, doanh tai
hieu van » hieu va, thien van, lieu va
va thanh » gia thanh, ban thanh, va tinh
tai cua » thai cua, tai cuc, tri cua
cau xuc » cam xuc, cau luc, cau truc
van cau » van dau, van hau, van chat
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay, lang van
xac ky » bac ky
sac ky » sai ky
xuc va » duc va, tuc va, luc va

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

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