Perhaps you should try some spelling variations:
thieu xanh » chieu xanh, hieu manh, thien anh
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
cua nhung » va nhung
trong van » trong cac
cong tac » cong ty
song van » hoang van, duong van, dang van
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 - hanh trinh cua nhung ((cong tac) or (((song van) OR (trong van)))) toan cau~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh cua nhung ((cong tac) OR (((song van) OR (trong van)))) toan cau.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh cua nhung ((cong tac) or (((song van) OR (trong van)))) toan cau".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh cua nhung ((cong tac) or (((song van) OR (trong van)))) toan cau*.