Perhaps you should try some spelling variations:
luu tre » luu tru, cuu tre, luy tre
va tinh » may tinh
va kinh » qua kinh
vu cham » va cham, vu kham, tu cham
ve cham » va cham, ve chat, ve chim
tang xa » trang xa, tang ma, lang xa
ky tang » ky nang, ky dang, kho tang
sac ky » cac ky, sai ky
vi luu » vi lua
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sac ky tang xa hoi. hieu ((ve cham) or (vu cham)) hoc ((va kinh) OR (va tinh)) vi luu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky tang xa hoi. hieu ((ve cham) OR (vu cham)) hoc ((va kinh) OR (va tinh)) vi luu tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sac ky tang xa hoi. hieu ((ve cham) or (vu cham)) hoc ((va kinh) OR (va tinh)) vi luu tre".
• Adding a wildcard symbol may retrieve word variants: tu sac ky tang xa hoi. hieu ((ve cham) or (vu cham)) hoc ((va kinh) OR (va tinh)) vi luu tre*.