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
tu sach » thu sach, su sach, te sach
ty nang » ty xang, ty hang, ly nang
va danh » va dinh, va dan, va hanh
danh va » doanh va, hanh va, anh va
huu tri » huu tai
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 nang) OR (ky 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 nang) OR (ky nang)) o hoi. chieu chien hach tuc va danh va huu tri".
• Adding a wildcard symbol may retrieve word variants: tu sach ((ty nang) OR (ky nang)) o hoi. chieu chien hach tuc va danh va huu tri*.