Perhaps you should try some spelling variations:
trinh thai » trinh tai, trinh thi, tinh thai
trong van » trong cac
tang van » dang van, hoang van, tang luan
va trinh » van trinh, va tinh, lap trinh
thai cua » than cua, tai cuc, tri cua
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
lang xa » lang ha, dang xay, lang van
hieu va » lieu va, hieu qua
cua tre » cua te, cuu tre, cua triet
va cam » va cham, va cac, va cao
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: so sach ty ((((tang van) OR (trong van))) OR (lang xa)) hoi. hieu va cam xuc va trinh thai cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty ((((tang van) OR (trong van))) OR (lang xa)) hoi. hieu va cam xuc va trinh thai cua tre".
• Adding a wildcard symbol may retrieve word variants: so sach ty ((((tang van) OR (trong van))) OR (lang xa)) hoi. hieu va cam xuc va trinh thai cua tre*.