Perhaps you should try some spelling variations:
van thanh » ban thanh, van tuan
van hanh » ban hanh, van anh, van ban
te sach » toc sach
nang ma » tang ma, sang ma, nang cao
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su
y nang » ky nang, ly nang, v nang
ve cac » vien cac
ma hoi » mai hoi, xa hoi, ma hoa

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