Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"hong duc thi slippers" » "dang duc thi slippers", "ton duc thi slippers", "hong duc thai slippers", "hong luc thi slippers", "hong duc tho slippers", "hong duc thi slippery", "hong duc thi 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: (((("hong duc thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("hong duc thi slippers") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( hong duc thi slippers ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("hong duc thi slippers") or ("python using java snippets"))) or ("locating bug code snippets"))*.