Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc cong chu snippets" » "hoc cong code snippets", "hoc co chu snippets", "cac cong chu snippets", "hoc dung chu snippets", "hoc cong chuc snippets", "hoc cong chua snippets", "hoc cong cu 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: (((("hoc cong chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc cong chu snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc cong chu snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc cong chu snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.