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