Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"lanh dao co snippets" » "lanh dao cao snippets", "lanh dao cho snippets", "lanh dao o snippets", "lan dao co snippets", "anh dao co snippets", "hanh dao co 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: (((("lanh dao co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("lanh dao co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( lanh dao co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("lanh dao co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.