Perhaps you should try some spelling variations:
du triet » su triet, tu triet, cua triet
ky mang » ky nang, ke mang, ky dang
may hoi » may thoi, tay hoi, mai hoi
va cham » va tham
va chat » van chat, va phat, cao chat
va tinh » may tinh
toan du » tran duc, toan cau
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky
tuc va » thuc va, truc va, tuc xa

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 mang may hoi. hieu ((va cham) or (va chat)) tuc va tinh toan du triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky mang may hoi. hieu ((va cham) OR (va chat)) tuc va tinh toan du triet.
• Adding a wildcard symbol may retrieve word variants: tu sac ky mang may hoi. hieu ((va cham) or (va chat)) tuc va tinh toan du triet*.