Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"giet van cau snippets" » "viet van cau snippets", "hieu van cau snippets", "gioi van cau snippets", "giet van dau snippets", "giet van hau snippets", "giet van chat 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: (((("giet van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("giet van cau snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( giet van cau snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("giet van cau snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.