Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cho sach cap snippets" » "cho sach code snippets", "co sach cap snippets", "cao sach cap snippets", "cho lach cap snippets", "cho sach dao snippets", "cho sach bai snippets", "cho sach xa snippets"
"python using java snippets" » "python using data snippets"

Try widening your search to All Fields.

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

• Performing a fuzzy search may retrieve terms with similar spellings: (((("cho sach cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cho sach cap snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cho sach cap snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cho sach cap snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.