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