Perhaps you should try some spelling variations:
"locating bug core snippets" » "locating bug code snippets"
"gian lan doc snippets" » "gian lan code snippets", "gian lang doc snippets", "gian dan doc snippets", "giang van doc snippets", "gian lan dac snippets", "gian lap doc snippets", "gian nang doc 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: (((("gian lan doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("gian lan doc snippets") OR ("python using java snippets"))) OR ("locating bug core snippets")).
• Removing quotes may allow a broader search: (((( gian lan doc snippets ) or ( python using java snippets ))) or ( locating bug core snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("gian lan doc snippets") or ("python using java snippets"))) or ("locating bug core snippets"))*.