Perhaps you should try some spelling variations:
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
xuc van » duc van, luc van, vuc van
hanh di » hanh vi, hanh de, hang di
y nang » ly nang, v nang, may nang
ma hoi » mai hoi, xa hoi, ma hoa
ve cac » vien cac
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su

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

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