Perhaps you should try some spelling variations:
thanh trung » thanh tung
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
kha nang » phap nang, ky nang, ki nang
cong dan » cong san, cong tan, huong dan
than cau » toan cau, phan cau, than cap
phan dau » phan tu, hang dau
ha nang » hoa nang, da nang, ha tang

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 - thanh trung ((ha nang) OR (kha nang)) cong dan ((than cau) or (phan dau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh trung ((ha nang) OR (kha nang)) cong dan ((than cau) OR (phan dau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh trung ((ha nang) OR (kha nang)) cong dan ((than cau) or (phan dau))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh trung ((ha nang) OR (kha nang)) cong dan ((than cau) or (phan dau))*.