Perhaps you should try some spelling variations:
lang mai » lang dai, lang hai, lang man
mai khoi » mai khoa, tai khoa, cac khoi
hanh tai » thanh tai, hang tai, han tai
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
xuc van » duc van, luc van, vuc van
tai cuu » tai cuc, tai buu, tai cua
cuu tre » cua tre, cau tren, cau treo
sach ky » sac ky, sach y, sach ty
ky lang » ky nang, ky dang, ky tang
ve cai » va cai, ve cac, ve tai
va cam » va cham, va cac, va cao
ve cam » ve cham, ve cac, ve cau

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 ky lang mai khoi. hieu ((((ve cam) OR (ve cai))) or (va cam)) xuc van hanh tai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky lang mai khoi. hieu ((((ve cam) OR (ve cai))) OR (va cam)) xuc van hanh tai cuu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky lang mai khoi. hieu ((((ve cam) OR (ve cai))) or (va cam)) xuc van hanh tai cuu tre".
• Adding a wildcard symbol may retrieve word variants: te sach ky lang mai khoi. hieu ((((ve cam) OR (ve cai))) or (va cam)) xuc van hanh tai cuu tre*.