Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"sat cao cong snippets" » "sat cac cong snippets", "sat cao dang snippets", "sat cua cong snippets", "suat cao cong snippets", "chat cao cong 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: (((("sat cao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("sat cao cong snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( sat cao cong snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("sat cao cong snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.