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