Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc chinh bo snippets" » "hoan chinh bo snippets", "hoc sinh bo snippets", "hoc kinh bo snippets", "hoc chinh bao snippets", "hoc chinh so snippets", "hoc chinh do 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: (((("hoc chinh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc chinh bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc chinh bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc chinh bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.