Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"tam len cong snippets" » "tam den cong snippets", "tam le cong snippets", "tam len con snippets", "tam ben cong snippets", "dam len cong snippets", "tam linh cong 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: (((("tam len cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("tam len cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( tam len cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("tam len cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.