Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hoc thieu bo snippets" » "toc thieu bo snippets", "hoc hien bo snippets", "hoc thieu so snippets", "hoc hieu bo snippets", "hoc thieu o 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: (((("hoc thieu bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hoc thieu bo snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hoc thieu bo snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hoc thieu bo snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.