Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"lan lang cua snippets" » "lan lang code snippets", "ban lang cua snippets", "lan tang cua snippets", "van lang cua snippets", "lan mang cua snippets", "lan hang cua snippets", "lan long 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: (((("lan lang 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: (((("lan lang cua snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( lan lang cua snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lan lang cua snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.