Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"quang hoi du snippets" » "quang huy du snippets", "quan doi du snippets", "quang tri du snippets", "quang hoi tu snippets", "quang hoi cu snippets", "quang toi du 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: (((("quang hoi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("quang hoi du snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( quang hoi du snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("quang hoi du snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.