Perhaps you should try some spelling variations:
manh hanh » xanh hanh, danh thanh, minh thanh
soc manh » suc manh, ho manh, duc manh
su sach » so sach, vu sach
hai cua » thai cua, dai cua, hoi cua
vai cua » dai cua, lai cua, bai cua
va chat » van chat, va phat, cao chat
sach ky » sac ky, sach y, sach ty
ve cham » va cham, ve chat, vu cham
nang o » nang co, nang ho, nang ro
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: su sach ky nang o hoi. hieu ((ve cham) or (va chat)) soc manh hanh ((vai cua) OR (hai cua)) te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang o hoi. hieu ((ve cham) OR (va chat)) soc manh hanh ((vai cua) OR (hai cua)) te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang o hoi. hieu ((ve cham) or (va chat)) soc manh hanh ((vai cua) OR (hai cua)) te*".