Perhaps you should try some spelling variations:
bach hoi » sach hoi, bach hoa, bach khoa
dang xay » dang van, van xay
danh vi » hanh vi, dinh vi, danh di
va danh » va dinh, va dan, va hanh
cam luc » cau luc
cua tre » cua te, cuu tre, cua triet
hieu ve » hieu va, hieu van
nang ma » tang ma, sang ma, nang cao
vi cua » vai cua, di cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: vu bach hoi ((dang xay) or (nang ma)) hoi. hieu ve ((cam luc) or (cam xuc)) va danh vi cua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: vu bach hoi ((dang xay) OR (nang ma)) hoi. hieu ve ((cam luc) OR (cam xuc)) va danh vi cua tre.
• Adding a wildcard symbol may retrieve word variants: vu bach hoi ((dang xay) or (nang ma)) hoi. hieu ve ((cam luc) or (cam xuc)) va danh vi cua tre*.