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