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