Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, cang thang, hung thang
cong thuc » cong tac
cua dung » cua dong, qua dung, cua rung
cua dang » cua cong, cua ban
cong tuc » cong tac, cong suc, cong tu
va ban » van ban, va bai, va bao

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 - hang hang ((cua dung) or (cua dang)) ((cong tuc) OR (cong thuc)) va ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hang hang ((cua dung) OR (cua dang)) ((cong tuc) OR (cong thuc)) va ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hang hang ((cua dung) or (cua dang)) ((cong tuc) OR (cong thuc)) va ban".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hang hang ((cua dung) or (cua dang)) ((cong tuc) OR (cong thuc)) va ban*.