Perhaps you should try some spelling variations:
"creating ap dung slippers" » "creating a dung slippers", "creating _ dung slippers", "creating xay dung slippers", "creating van dung slippers", "creating ap dung slippery", "creating ap dung grippers"
"reading a a snippets" » "reading _ a snippets", "reading 1 a snippets", "reading 2 a 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: (((("creating ap dung slippers") or ("reading a a snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("creating ap dung slippers") OR ("reading a a snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( creating ap dung slippers ) or ( reading a a snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("creating ap dung slippers") or ("reading a a snippets"))) or ("locating bug code snippets"))*.