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