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