Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi chinh do snippets" » "phi chinh code snippets", "thi chinh do snippets", "tai chinh do snippets", "thi hinh do snippets", "phi chinh so snippets", "phi chinh du snippets", "phi chinh cho 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: (((("phi chinh do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phi chinh do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phi chinh do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi chinh do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.