Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"luat thu ho snippets" » "luat thue ho snippets", "luat thi ho snippets", "luat tu ho snippets", "luat thu hoi snippets", "luat thu hoc snippets", "luat thu ha 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: (((("luat thu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("luat thu ho snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( luat thu ho snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("luat thu ho snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.