Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hoc thieu » toc thieu, hoc hien
thang cua » thong cua, hang cua, than cua
trung cua » truong cua, trung tuan, trung cap
cong cong » cong dong, trong cong, dung cong
san can » ban can, san chang, van canh
san van » tan van, luan van, tran van

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