Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"data phan du snippets" » "data phan code snippets", "dam phan du snippets", "sat phan du snippets", "vat phan du snippets", "data phan dau snippets", "data phan duc snippets", "data phan dua snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("data phan 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: (((("data phan du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( data phan du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("data phan du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.