Perhaps you should try some spelling variations:
hanh hai » thanh hai, nhanh hai, hang hai
su sach » so sach, vu sach
hai cua » thai cua, dai cua, hoi cua
y nang » ky nang, ly nang, v nang
va cai » va bai, va dai, va cao
tuc va » thuc va, truc va, duc va
cua tu » cua tuc, cua su, cua cu
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: su sach y nang x hoi. hieu ((va cai) or (va cac)) ((tuc va) or (tuc xa)) hanh hai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach y nang x hoi. hieu ((va cai) OR (va cac)) ((tuc va) OR (tuc xa)) hanh hai cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach y nang x hoi. hieu ((va cai) or (va cac)) ((tuc va) or (tuc xa)) hanh hai cua tu*.