Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien hanh » hien hanh, chien tranh, thien thanh
hanh nuoc » hanh duoc, hanh thuoc, khanh quoc
so sanh » do sanh
co sach » bo sach, cuon sach, hoc sach
nang xa » nang x, lang xa, mang xa
nang ma » tang ma, sang ma, nang cao
va hanh » van hanh, va thanh, va danh
vi cua » vai cua, di cua
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: ((so sanh) or (co sach)) ky ((nang xa) OR (nang ma)) hoi. chieu chien hanh nuoc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sanh) OR (co sach)) ky ((nang xa) OR (nang ma)) hoi. chieu chien hanh nuoc va hanh vi cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sanh) or (co sach)) ky ((nang xa) OR (nang ma)) hoi. chieu chien hanh nuoc va hanh vi cua tu*".