Perhaps you should try some spelling variations:
va triet » va thiet, va trien, ve triet
dung cay » dung cac, dung may, dung cam
dan khai » dang khai, van khai, dang khoi
bang cac » nang cao, hang ca, dung cac
dang cay » dang xay, dang ca, dang cac
sach ky » sac ky, sach y, sach ty
hieu va » lieu va, hieu qua
ban dan » ban hang, ban hanh, ban quan
khai va » thai va, hai va, khi va
vu sach » vu bach, su sach, vu khach
du ban » dua ban, duc ban, du bao

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu sach ky ((((dang cay) or (dung cay))) or (bang cac)) phoi. hieu va cac du ban dan khai va triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu sach ky ((((dang cay) OR (dung cay))) OR (bang cac)) phoi. hieu va cac du ban dan khai va triet.
• Adding a wildcard symbol may retrieve word variants: vu sach ky ((((dang cay) or (dung cay))) or (bang cac)) phoi. hieu va cac du ban dan khai va triet*.