Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien hach » thien hach, chien dich, hien hanh
hach tuc » thach thuc, cach thuc, bach tuoc
sach ty » sach y, sach thu, xach tay
danh va » doanh va, hanh va, anh va
va danh » va dinh, va dan, va hanh
sach tu » sach thu, cach tu, sach uu
huu tri » huu tai
nang o » nang co, nang ho, nang ro
tuc va » thuc va, truc va, tuc xa
va huu » vu huu
o hoi » co hoi, o hoc, o hai

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu ((sach ty) OR (sach tu)) nang o hoi. chieu chien hach tuc va danh va huu tri~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((sach ty) OR (sach tu)) nang o hoi. chieu chien hach tuc va danh va huu tri".
• Adding a wildcard symbol may retrieve word variants: tu ((sach ty) OR (sach tu)) nang o hoi. chieu chien hach tuc va danh va huu tri*.