Perhaps you should try some spelling variations:
phuong tinh » phuong trinh, phuong binh, khuong tinh
hanh trung » thanh trung, manh trung, danh trung
hanh trang » thanh trung, canh tranh, hanh trinh
tieu xanh » tieu danh, chieu xanh, dieu hanh
cua dung » cua dang, cua dong, cua rung
qua dung » quang dung, su dung, qua song
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 - ((hanh trung) or (hanh trang)) ((cua dung) OR (qua dung)) phuong tinh toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo tieu xanh - ((hanh trung) OR (hanh trang)) ((cua dung) OR (qua dung)) phuong tinh toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo tieu xanh - ((hanh trung) or (hanh trang)) ((cua dung) OR (qua dung)) phuong tinh toan tap".
• Adding a wildcard symbol may retrieve word variants: theo tieu xanh - ((hanh trung) or (hanh trang)) ((cua dung) OR (qua dung)) phuong tinh toan tap*.