Perhaps you should try some spelling variations:
tru nang » tra nang, tri nang, truc nano
ban hanh » ban hang
su sach » vu sach
so sach » so sanh, bo sach, co sach
nang xa » nang x, lang xa, nang ma
van dau » van dao, phan dau
cuc ban » cua ban, cac ban, cuu ban
vi cua » vai cua, di cua
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) OR (so sach)) tru nang xa hoi. thien ((van nam) or (van dau)) cuc ban hanh vi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (so sach)) tru nang xa hoi. thien ((van nam) OR (van dau)) cuc ban hanh vi cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) OR (so sach)) tru nang xa hoi. thien ((van nam) or (van dau)) cuc ban hanh vi cua te".
• Adding a wildcard symbol may retrieve word variants: ((su sach) OR (so sach)) tru nang xa hoi. thien ((van nam) or (van dau)) cuc ban hanh vi cua te*.