Perhaps you should try some spelling variations:
trinh di » trinh do, trinh dien, trinh dinh
va trinh » van trinh, va tinh, lap trinh
lang van » dang van, tang van, hoang van
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
cua tre » cua te, cuu tre, cua triet
lang xa » lang ha, dang xay
de lam » da lam, de la, se lam
xuc va » duc va, tuc va, luc va
di cua » dai cua, doi cua, de cua
ve lam » va lam, se lam, ke lam

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ky ((lang xa) OR (lang van)) hoi. hieu ((ve lam) OR (de lam)) xuc va trinh di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky ((lang xa) OR (lang van)) hoi. hieu ((ve lam) OR (de lam)) xuc va trinh di cua tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky ((lang xa) OR (lang van)) hoi. hieu ((ve lam) OR (de lam)) xuc va trinh di cua tre*.