Perhaps you should try some spelling variations:
cang thang » cong thanh, dang thanh
thieu xanh » chieu xanh, hieu manh, thien anh
hung thang » hung tran
nhung cong » dung cong, thong cong, hang cong
hoc thieu » toc thieu, hoc hien
hang hang » nang hang, lang thang, hang khong
cua nhung » va nhung
cong tan » cong tac, cong san, cong thanh
tan toan » tan tran, tap toan, van toan
toan cau » toan cao, toan ban, toan tap

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