Perhaps you should try some spelling variations:
hanh vien » thanh vien, hanh kien, thanh nien
bach tro » bach tuoc, cac tro, ban tro
nang xa » nang x, lang xa, nang ma
qua cau » quan cau, qua cac, qua ca
truc va » thuc va, thuc vat, trung va
va hanh » van hanh, va thanh, ban hanh
xac ky » cac ky, sac ky
bac ky » cac ky, ban ky, sac ky

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu ((xac ky) OR (bac ky)) nang xa hoi. hieu qua cau truc va hanh vien bach tro~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu ((xac ky) OR (bac ky)) nang xa hoi. hieu qua cau truc va hanh vien bach tro".
• Adding a wildcard symbol may retrieve word variants: thu ((xac ky) OR (bac ky)) nang xa hoi. hieu qua cau truc va hanh vien bach tro*.