Perhaps you should try some spelling variations:
thanh thang » nhanh thang, thanh thanh, thanh hang
thieu xanh » chieu xanh, hieu manh, thien anh
canh trinh » canh tranh, hanh trinh, canh tinh
nguong dan » huong dan
hoc thieu » toc thieu, hoc hien
van thang » van thanh, van khang, van hang
chan cap » khan cap, cao cap, phan cac
than cap » khan cap, thanh lap, thanh cac

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: hoc thieu xanh - canh trinh ((thanh thang) or (van thang)) nguong dan ((chan cap) OR (than cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh trinh ((thanh thang) OR (van thang)) nguong dan ((chan cap) OR (than cap)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - canh trinh ((thanh thang) or (van thang)) nguong dan ((chan cap) OR (than cap))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh trinh ((thanh thang) or (van thang)) nguong dan ((chan cap) OR (than cap))*.