Perhaps you should try some spelling variations:
manh han » manh hai, manh hon, anh han
su sach » so sach, vu sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
han tai » hang tai, nhan tai, van tai
cua tre » cuu tre, cua triet, dua tren
ve cao » ve bao, ve cac, ve co
va cao » va cac, va co, va dao
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 ky nang xa hoi. hieu ((ve cao) OR (va cao)) suc manh han tai ((cua tre) or (cua te))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: su sach ky nang xa hoi. hieu ((ve cao) OR (va cao)) suc manh han tai ((cua tre) OR (cua te)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "su sach ky nang xa hoi. hieu ((ve cao) OR (va cao)) suc manh han tai ((cua tre) or (cua te))".
• Adding a wildcard symbol may retrieve word variants: su sach ky nang xa hoi. hieu ((ve cao) OR (va cao)) suc manh han tai ((cua tre) or (cua te))*.