Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"phap ngu coc snippets" » "phap ngu code snippets", "nhat ngu coc snippets", "han ngu coc snippets", "phap tu coc snippets", "phap ngu hoc snippets", "phap ngu cac snippets", "phap ngu co 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: (((("phap ngu coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("phap ngu coc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( phap ngu coc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("phap ngu coc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.