Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hap cao dong snippets" » "hap cao code snippets", "hap cao dang snippets", "hap lao dong snippets", "hap cao cong snippets", "chap lao dong snippets", "chat cao dong snippets", "chay cao dong 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: (((("hap cao dong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hap cao dong snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hap cao dong snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hap cao dong snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.