Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets", "python using java slippers"
"theo chu lan snippets" » "theo chieu lan snippets", "cho chu lan snippets", "chao chu lan snippets", "theo chu han snippets", "theo chu van snippets", "theo nhu lan snippets", "theo chu lan 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: (((("theo chu lan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("theo chu lan snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( theo chu lan snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("theo chu lan snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.