Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cua duc do snippets" » "cua duc code snippets", "cua tuc do snippets", "cua nuoc do snippets", "cua quoc do snippets", "cua duc dao snippets", "cua duoc do snippets", "cua muc do 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: (((("cua duc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cua duc do snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cua duc do snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cua duc do snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.