Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
thanh tung » thanh cong
chinh chau » chinh cho, chinh phu, minh chau
hoc thieu » toc thieu, hoc hien
chinh cau » chinh ca, chinh can, chinh tai
cua nong » cuu nong, cua dong, cua song
cong tan » cong tac, cong san, cong thanh

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 tung ((cua nong) OR (cua cong)) cong tan ((chinh cau) or (chinh chau))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - thanh tung ((cua nong) OR (cua cong)) cong tan ((chinh cau) OR (chinh chau)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - thanh tung ((cua nong) OR (cua cong)) cong tan ((chinh cau) or (chinh chau))".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - thanh tung ((cua nong) OR (cua cong)) cong tan ((chinh cau) or (chinh chau))*.