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 qua » trinh quan, trinh cua, trinh quang
qua chung » qua chuong, quat chung, cua chung
duong van » duong va, luong va, dang van
cong tac » cong ty
song van » hoang van, trong van, dang van
toan tap » toan ban

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 qua chung ((cong tac) or (((song van) OR (duong van)))) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: hoc thieu xanh - hanh trinh qua chung ((cong tac) OR (((song van) OR (duong van)))) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc thieu xanh - hanh trinh qua chung ((cong tac) or (((song van) OR (duong van)))) toan tap".
• Adding a wildcard symbol may retrieve word variants: hoc thieu xanh - hanh trinh qua chung ((cong tac) or (((song van) OR (duong van)))) toan tap*.