Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phi hoi dong snippets" » "phi hoi code snippets", "phi hop dong snippets", "phi hoat dong snippets", "phi ha dong snippets", "phi loi dong snippets", "khi hoi dong snippets", "phi doi dong 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 hoi dong 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 hoi dong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phi hoi dong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phi hoi dong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.