Perhaps you should try some spelling variations:
"hoc cau chap snippets" » "hoc cau code snippets", "hoc cau cham snippets", "hoc cau chan snippets", "hoc cau phap snippets", "hoc cao chap snippets", "hoc cac chap snippets", "hoc can chap snippets"
"locating bug core snippets" » "locating bug code snippets"
"python using java snippets" » "python using data snippets"

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("python using java snippets") or ("hoc cau chap snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("hoc cau chap snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoc cau chap snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoc cau chap snippets"))) or ("locating bug core snippets"))*.