Perhaps you should try some spelling variations:
phuong tien » phuong trinh
chieu tinh » trieu tinh, lieu tinh, chau tinh
huong tin » thuong tin, luong tin, khuong tinh
ho chieu » theo chieu, hoc thieu, doi chieu
toan tap » toan ban
manh va » hanh va, minh va, lanh va
anh va » hanh va

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: ho chieu tinh - canh ((manh va) or (anh va)) nhung ((huong tin) or (phuong tien)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu tinh - canh ((manh va) OR (anh va)) nhung ((huong tin) OR (phuong tien)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ho chieu tinh - canh ((manh va) or (anh va)) nhung ((huong tin) or (phuong tien)) toan tap*.