Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"chao xu cua snippets" » "chao xu code snippets", "chao hu cua snippets", "chao tu cua snippets", "chao vu cua snippets", "cho xu cua snippets", "cao xu cua snippets", "chat xu cua 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: (((("chao xu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chao xu cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( chao xu cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chao xu cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.