Perhaps you should try some spelling variations:
chieu chien » thien chien, hieu hien
chien hach » thien hach, chien dich, hien hanh
hach nuoc » sach nuoc, hoc nuoc, cac nuoc
trinh di » trinh do, trinh dien, trinh dinh
tinh di » tinh doi, tinh da, tin di
so sach » so sanh, co sach, hoc sach
nang xa » nang x, lang xa, nang ma
bo sach » co sach, hoc sach
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 sach) or (bo sach)) ky nang xa hoi. chieu chien hach nuoc va ((tinh di) OR (trinh di)) cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((so sach) OR (bo sach)) ky nang xa hoi. chieu chien hach nuoc va ((tinh di) OR (trinh di)) cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((so sach) or (bo sach)) ky nang xa hoi. chieu chien hach nuoc va ((tinh di) OR (trinh di)) cua tu*".