Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"doi qua cham snippets" » "doi qua code snippets", "doi qua hai snippets", "doi qua cac snippets", "doi va cham snippets", "doi cua cham snippets", "hoi qua cham snippets", "doi quy cham 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: (((("doi qua cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("doi qua cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( doi qua cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("doi qua cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.