Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lan tham do snippets" » "van tham do snippets", "lan thom do snippets", "hang tham do snippets", "lan thai do snippets", "lan pham do snippets", "lan tham du 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 ("lan tham do snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("python using java snippets") OR ("lan tham do snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( python using java snippets ) or ( lan tham do snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("python using java snippets") or ("lan tham do snippets"))) or ("locating bug code snippets"))*.