Perhaps you should try some spelling variations:
thu sach » thuat sach, thuoc sach, thu hoach
cham cuu » cap cuu, chat cua
van hanh » van thanh, ban hanh, van anh
tu sach » su sach, te sach, tu cach
ty nang » ky nang, ty xang, ty hang
hanh di » hanh vi, hanh de, hang di
cam cuu » cap cuu
di cua » dai cua, doi cua, de cua
cua cu » cua chu, cua cau, cua su
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((thu sach) OR (tu sach)) ty nang x hoi. lieu va ((cam cuu) or (cham cuu)) van hanh di cua cu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((thu sach) OR (tu sach)) ty nang x hoi. lieu va ((cam cuu) OR (cham cuu)) van hanh di cua cu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((thu sach) OR (tu sach)) ty nang x hoi. lieu va ((cam cuu) or (cham cuu)) van hanh di cua cu*".