Perhaps you should try some spelling variations:
su triet » su viet, su tien, ve triet
cau treo » cau theo, cau tren, cau triet
chat sac » hat sac, chat va, chat ban
tu nang » tru nang, tu nong, tu nano
hieu va » lieu va, hieu qua
va chat » van chat, va phat, cao chat
sac van » cac van, san van, sat van
van anh » van thanh, tuan anh, van minh
anh vi » hanh vi, anh va, anh ve

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu cach) OR (tu cac)) tu nang x ho. hieu va chat sac van anh vi ((cau treo) or (su triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu cach) OR (tu cac)) tu nang x ho. hieu va chat sac van anh vi ((cau treo) OR (su triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu cach) OR (tu cac)) tu nang x ho. hieu va chat sac van anh vi ((cau treo) or (su triet))".
• Adding a wildcard symbol may retrieve word variants: ((tu cach) OR (tu cac)) tu nang x ho. hieu va chat sac van anh vi ((cau treo) or (su triet))*.