Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"cong mong du snippets" » "cong mong code snippets", "cong dong du snippets", "cong cong du snippets", "cong nong du snippets", "cong muong du snippets", "cong mong do snippets", "cong song du 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 mong 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 mong du snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( cong mong du snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("cong mong du snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.