Perhaps you should try some spelling variations:
minh thanh » dinh thanh, tinh thanh, hinh thanh
manh thanh » danh thanh, manh thang, anh thanh
hieu van » hieu va, thien van, lieu va
van cham » van chat, van tham, va cham
cham duc » pham duc, cham soc, pham duy
su sach » so sach, vu sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
hoai ca » hoai cai, hoai va, loai ca
ca viet » va viet, co viet, hoa viet
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: su sach ty nang x hoi. hieu van cham duc ((manh thanh) OR (minh thanh)) hoai ca viet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ty nang x hoi. hieu van cham duc ((manh thanh) OR (minh thanh)) hoai ca viet".
• Adding a wildcard symbol may retrieve word variants: su sach ty nang x hoi. hieu van cham duc ((manh thanh) OR (minh thanh)) hoai ca viet*.