Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thuong dan » huong dan, thuong han, thuong dam
hoc thieu » toc thieu, hoc hien
than cau » toan cau, phan cau, than cap
khan cap » khan ap, than cap, khoan cam
manh va » hanh va, anh va, lanh va
minh va » tinh va, sinh va, sinh vat

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 ((manh va) or (minh va)) hang thuong dan ((than cau) or (khan cap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - canh ((manh va) OR (minh va)) hang thuong dan ((than cau) OR (khan cap)).
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - canh ((manh va) or (minh va)) hang thuong dan ((than cau) or (khan cap))*.