Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"anh te cong snippets" » "anh tai cong snippets", "anh thi cong snippets", "anh thu cong snippets", "anh tu cong snippets", "anh ta cong snippets", "anh ve 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: (((("anh te 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: (((("anh te cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( anh te cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("anh te cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.