Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"huu lieu che snippets" » "huu hieu che snippets", "huu liem che snippets", "du lieu che snippets", "huu dieu che snippets", "huu lieu nhe snippets", "huu lieu chiu 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: (((("huu lieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("huu lieu che snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( huu lieu che snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("huu lieu che snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.