Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phan dao du snippets" » "phan dao code snippets", "phan dau du snippets", "phan dai du snippets", "phan day du snippets", "phan dao duc snippets", "phan dao duy snippets", "phan dao do snippets"
"python using java snippets" » "python using data 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: (((("phan dao du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phan dao du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phan dao du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phan dao du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.