Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"pho can chap snippets" » "pho can chan snippets", "pho cau chap snippets", "pho cang chai snippets", "cho can chap snippets", "pho cap chap snippets", "pho cam chap 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 can chap 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 can chap snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( pho can chap snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("pho can chap snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.