Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"trien tin so snippets" » "trien tinh so snippets", "trien ton so snippets", "trieu tinh so snippets", "trien tinh son 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: (((("trien tin so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("trien tin so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( trien tin so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("trien tin so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.