Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thu lang son snippets" » "thu hang son snippets", "thu bang son snippets", "phu lang son snippets", "thu nang song snippets", "thu bang song snippets", "thu anh 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: (((("thu lang 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: (((("thu lang son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thu lang son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thu lang son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.