Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"mot minh cac snippets" » "mai minh cac snippets", "do minh cac snippets", "mot minh cach snippets", "mot dinh cac snippets", "mot minh bac 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: (((("mot minh cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("mot minh cac snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( mot minh cac snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("mot minh cac snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.