Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"van dong san slippers" » "van cong san slippers", "van dong bang slippers", "van dong von slippers", "van dong san slippery", "van dong san grippers"
"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: (((("van dong san slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("van dong san slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( van dong san slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("van dong san slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.