Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"va lien tuc snippets" » "va kien thuc snippets", "va kien truc snippets", "va dien tu snippets", "vat lieu tuc snippets", "hai lien tuc snippets", "va lien tuc slippers"
"locating bug code snippets" » "locating bug code slippers", "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: (((("va lien tuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("va lien tuc snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( va lien tuc snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("va lien tuc snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.