Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong may du snippets" » "cong may code snippets", "cong xay du snippets", "cong ma du snippets", "cong hay du snippets", "cong day du snippets", "cong may tu snippets", "cong may 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: (((("cong may du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("cong may du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong may du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong may du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.