Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"do tuc cham snippets" » "do tuc code snippets", "do toc cham snippets", "do tu cham snippets", "do phuc cham snippets", "dao tuc cham snippets", "do thuc cham snippets", "do duc 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: (((("do tuc 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: (((("do tuc cham snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( do tuc cham snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("do tuc cham snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.