Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"thuat tu chi snippets" » "thuat sua chi snippets", "thuat do chi snippets", "thuat o chi snippets", "thuat thu chi snippets", "thuat tu chiu snippets", "thuat tu choi 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: (((("thuat tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("thuat tu chi snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( thuat tu chi snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("thuat tu chi snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.