Perhaps you should try some spelling variations:
khang tai » hang tai, nhan tai, khau tai
van khang » van khanh, van thanh, van quang
cao tren » ca tren, cau tren, co tren
dang mai » dang hai, dang mau, dang bai
mai khoi » mai khoa, tai khoa, cac khoi
ve cham » va cham, ve chat, vu cham
tai cao » thai cao, tao cao, tai sao
xuc van » duc van, luc van, vuc van
tu sach » thu sach, su sach, tu cach
ky dang » ky nang, ky danh
te sach » toc sach
ve cam » ve cac, va cam, ve cai

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sach) OR (te sach)) ky dang mai khoi. hieu ((ve cam) or (ve cham)) xuc van khang tai cao tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sach) OR (te sach)) ky dang mai khoi. hieu ((ve cam) OR (ve cham)) xuc van khang tai cao tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sach) OR (te sach)) ky dang mai khoi. hieu ((ve cam) or (ve cham)) xuc van khang tai cao tren".
• Adding a wildcard symbol may retrieve word variants: ((tu sach) OR (te sach)) ky dang mai khoi. hieu ((ve cam) or (ve cham)) xuc van khang tai cao tren*.