Perhaps you should try some spelling variations:
"hoa cau chap snippets" » "hoa cau code snippets", "hoa cau cham snippets", "hoa cau chan snippets", "hoa cau phap snippets", "hoa cac chap snippets", "hoa dau chap snippets", "hoa mau chap snippets"
"locating bug core snippets" » "locating bug code 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: (((("python using java snippets") or ("hoa 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 ("hoa cau chap snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( hoa cau chap snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("hoa cau chap snippets"))) or ("locating bug core snippets"))*.