Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"hoc dat cao snippets" » "hoc dat code snippets", "hoc dan cao snippets", "hoc dai cao snippets", "hoc phat cao snippets", "hoc dat cau snippets", "hoc dam cao snippets", "hoc dao cao 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 dat cao 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 dat cao snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( hoc dat cao snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc dat cao snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.