Perhaps you should try some spelling variations:
dang cay » dang xay, dang ca, dang cac
cay phoi » cap phoi, tay hoi, cay cho
va trien » va truyen, va thiet, va tuyen
hieu va » lieu va, hieu qua
cac duc » cac du, cao duc, cac dac
va danh » va dinh, va dan, va hanh
danh vi » hanh vi, dinh vi, danh di
vi va » vi van, vai va, vu va

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

• Performing a fuzzy search may retrieve terms with similar spellings: hoc sinh _ dang cay phoi. hieu va cac duc va danh vi va trien~.
• Adding a wildcard symbol may retrieve word variants: hoc sinh _ dang cay phoi. hieu va cac duc va danh vi va trien*.