Perhaps you should try some spelling variations:
thuat nang » thuat bang, thuat mang, thuat trang
van hanh » van thanh, ban hanh, van anh
su dich » su tich, su dinh, chu dich
cac duc » cac du, cao duc, cac dac
cua tre » cua te, cuu tre, cua triet
duc van » duc va, duc tan, duc manh
su viet » so viet
hieu ve » hieu va, hieu van
cao hoi » cau hoi, co hoi, cao hoc
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su dich) or (chu thich)) thuat nang cao hoi. hieu ve cac duc van hanh vi ((cua tre) or (su viet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su dich) OR (chu thich)) thuat nang cao hoi. hieu ve cac duc van hanh vi ((cua tre) OR (su viet)).
• Adding a wildcard symbol may retrieve word variants: ((su dich) or (chu thich)) thuat nang cao hoi. hieu ve cac duc van hanh vi ((cua tre) or (su viet))*.