Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong pha du snippets" » "cong pha code snippets", "cong phan du snippets", "cong pham du snippets", "cong ha du snippets", "cong pham duc snippets", "cong pham duy snippets", "cong phan duc 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: (((("cong pha 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: (((("cong pha du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong pha du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong pha du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.