Perhaps you should try some spelling variations:
sang tai » hang tai, sang tao, tang tai
tai khoa » da khoa, noi khoa
va thanh » gia thanh, ban thanh, va tinh
du chat » duoc chat, dung chat, doc chat
va hanh » van hanh, va danh, ban hanh
ky sang » ky nang, ky dang, ky tang
su chat » su phat, so chat, tu chat
vai cua » dai cua, hai cua, lai cua
tu san » thu san, tu ban, tu can
san ky » sang ky, van ky, dan ky
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu san ky sang tai khoa. hieu ((su chat) or (du chat)) xuc ((va hanh) OR (va thanh)) vai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu san ky sang tai khoa. hieu ((su chat) OR (du chat)) xuc ((va hanh) OR (va thanh)) vai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu san ky sang tai khoa. hieu ((su chat) or (du chat)) xuc ((va hanh) OR (va thanh)) vai cua te".
• Adding a wildcard symbol may retrieve word variants: tu san ky sang tai khoa. hieu ((su chat) or (du chat)) xuc ((va hanh) OR (va thanh)) vai cua te*.