Perhaps you should try some spelling variations:
trinh doi » trinh do, trinh hoi, tinh doi
van trinh » van thinh, van tinh, dan trinh
chat xuc » chat huu, cam xuc, chao xu
van chat » cao chat
hieu van » hieu va, thien van, lieu va
doi cua » dai cua, hoi cua
xuc van » duc van, luc van, vuc van
cua tre » cua te, cuu tre, cua triet
sach ky » sach y, sach ty, sach kem
nang ma » tang ma, sang ma, nang cao
lang xa » lang ha, dang xay, lang van
sac ky » cac ky, sai ky

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 ky) OR (sac ky)) ((lang xa) or (nang ma)) hoi. hieu van chat xuc van trinh doi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: so ((sach ky) OR (sac ky)) ((lang xa) OR (nang ma)) hoi. hieu van chat xuc van trinh doi cua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so ((sach ky) OR (sac ky)) ((lang xa) or (nang ma)) hoi. hieu van chat xuc van trinh doi cua tre".
• Adding a wildcard symbol may retrieve word variants: so ((sach ky) OR (sac ky)) ((lang xa) or (nang ma)) hoi. hieu van chat xuc van trinh doi cua tre*.