Perhaps you should try some spelling variations:
thien van » thi van
van pham » san pham, van phan, van phat
ban hanh » ban hang
dua tren » dung tren
cao hoi » cau hoi, co hoi, cao hoc
duc ban » duc tan, duc van, dua ban
cua tre » cua te, cua triet, cua thep
cuu tre » cau tren, cau treo
tu sac » tu sach, tu cac, tu san
sac ky » cac ky, sai ky

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 nang cao hoi. thien van pham duc ban hanh vi ((((cua tre) or (dua tren))) or (cuu tre))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sac ky nang cao hoi. thien van pham duc ban hanh vi ((((cua tre) OR (dua tren))) OR (cuu tre)).
• Adding a wildcard symbol may retrieve word variants: tu sac ky nang cao hoi. thien van pham duc ban hanh vi ((((cua tre) or (dua tren))) or (cuu tre))*.