Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho chu chan snippets" » "pho chu han snippets", "pho chua chay snippets", "pho chu van snippets", "cho chu chan snippets", "ho chu chan snippets", "pho cu chan 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: (((("pho chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("pho chu chan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho chu chan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho chu chan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.