Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sac cuu hoan snippets" » "sac luu hoang snippets", "sac cuu van snippets", "sac cuu khoa snippets", "sac cua hoan snippets", "sach cua hoan snippets", "sach luu hoan snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core 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: (((("sac cuu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sac cuu hoan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sac cuu hoan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sac cuu hoan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.