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