Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chan so cong snippets" » "chan o cong snippets", "than so cong snippets", "cham soc cong snippets", "chan bo cong snippets", "chan cao cong snippets", "chan hoc 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: (((("chan so 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: (((("chan so cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chan so cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chan so cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.