Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
hanh tai » thanh tai, hang tai, han tai
su sach » so sach, vu sach
ky sang » ky nang, ky tang, duy sang
ky dang » ky nang, ky danh
lap lai » lap tai, lay lai, lam lai
hieu ve » hieu va, hieu van
xuc van » duc van, luc van, vuc van
tai cua » thai cua, tai cuc, tri cua
ve cam » ve cham, ve cac, va cam
cua tu » cua tuc, cua su, cua cu

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 ((ky sang) or (ky dang)) lap lai. hieu ve cam xuc van hanh tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ((ky sang) OR (ky dang)) lap lai. hieu ve cam xuc van hanh tai cua tu.
• Adding a wildcard symbol may retrieve word variants: su sach ((ky sang) or (ky dang)) lap lai. hieu ve cam xuc van hanh tai cua tu*.