Perhaps you should try some spelling variations:
gianh lai » gian lan
va gianh » va gian, van giang, va giai
sach ky » sach y, sach ty, sach kem
hieu va » lieu va, hieu qua
cac xuc » cam xuc, cac nuoc, chat xuc
lai cua » dai cua, hai cua, lai chau
sac ky » cac ky, sai ky
xuc va » duc va, tuc va, luc va
cua te » cua tu
x hoi » xa hoi, o hoi, 5 hoi

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc ((sach ky) OR (sac ky)) nang ((x hoi) or (x ho)). hieu va cac xuc va gianh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((sach ky) OR (sac ky)) nang ((x hoi) OR (x ho)). hieu va cac xuc va gianh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((sach ky) OR (sac ky)) nang ((x hoi) or (x ho)). hieu va cac xuc va gianh lai cua te".
• Adding a wildcard symbol may retrieve word variants: hoc ((sach ky) OR (sac ky)) nang ((x hoi) or (x ho)). hieu va cac xuc va gianh lai cua te*.