Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien danh
thien anh » thien danh, tien anh, thien thanh
hanh tram » hanh tam, hanh trang, thanh tran
dang cong » dung cong
tram van » tran van, tam van, trang van
van dang » van dong, van dung, van nang
nen tang » le 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) OR (thien anh)) - hanh tram van dang cong ((dinh van) or (nen tang)) ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc ((thieu xanh) OR (thien anh)) - hanh tram van dang cong ((dinh van) OR (nen tang)) ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc ((thieu xanh) OR (thien anh)) - hanh tram van dang cong ((dinh van) or (nen tang)) ban".
• Adding a wildcard symbol may retrieve word variants: hoc ((thieu xanh) OR (thien anh)) - hanh tram van dang cong ((dinh van) or (nen tang)) ban*.