Perhaps you should try some spelling variations:
tieu xanh » tieu danh, chieu xanh, dieu hanh
cong vinh » cong trinh, trong vinh, cong viec
anh tang » anh dang, anh nang, anh sang
anh bang » anh hoang, anh quang, tinh bang
luan han » luan hoan, luan phan, luan van
han cong » phan cong, hang cong, hanh cong
toan tai » doanh tai, toan ban, toan cao
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: theo tieu xanh - ((anh tang) or (anh bang)) luan han cong vinh ((toan tai) or (toan tap))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((anh tang) OR (anh bang)) luan han cong vinh ((toan tai) OR (toan tap)).
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((anh tang) or (anh bang)) luan han cong vinh ((toan tai) or (toan tap))*.