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