Perhaps you should try some spelling variations:
khanh vi » hanh vi, khanh v, nhanh vi
xa khanh » xa thanh, van khanh, dat khanh
sang tai » hang tai, sang tao, tang tai
tai khoa » da khoa, noi khoa
cam tuc » cam xuc, cam tu, nam thuc
hieu va » lieu va, hieu qua
hieu ve » hieu van
sach ky » sach y, sach ty, sach kem
cuu tre » cua tre, cau tren, cau treo
sac ky » cac ky, sai ky
vi cuu » vi luu, vinh cuu

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) OR (sac ky)) sang tai khoa. ((hieu ve) or (hieu va)) cam tuc xa khanh vi cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((sach ky) OR (sac ky)) sang tai khoa. ((hieu ve) OR (hieu va)) cam tuc xa khanh vi cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ky) OR (sac ky)) sang tai khoa. ((hieu ve) or (hieu va)) cam tuc xa khanh vi cuu tre*".