Perhaps you should try some spelling variations:
thuc nang » chuc nang, thuc trang, thich nang
hieu vien » hieu hien, hieu viec, thieu nien
vien cac » vien bach, vien dai, vien da
duc danh » duc anh, duc manh, duc hanh
thanh va » thanh van, thanh ha, thanh ve
tu manh » tu minh, tu hanh, vu manh
nang xa » nang x, lang xa, nang ma
hanh va » hang va, hanh vi
cac duc » cac du, cao duc, cac dac
tu anh » tu hanh, thu anh, tu lanh
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu anh) or (tu manh)) thuc nang xa hoi. hieu vien cac duc danh ((thanh va) OR (hanh va)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu anh) OR (tu manh)) thuc nang xa hoi. hieu vien cac duc danh ((thanh va) OR (hanh va)) cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu anh) or (tu manh)) thuc nang xa hoi. hieu vien cac duc danh ((thanh va) OR (hanh va)) cua tu".
• Adding a wildcard symbol may retrieve word variants: ((tu anh) or (tu manh)) thuc nang xa hoi. hieu vien cac duc danh ((thanh va) OR (hanh va)) cua tu*.