Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thiet » hoc thieu, hoc thuyet, toc thieu
trinh qua » trinh quan, trinh cua, trinh quang
tuong tac » luong tai, tuong lai
qua dung » quang dung, su dung, qua song
cong tac » cong ty
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 thiet) or (hoc hien)) minh - hanh trinh qua dung ((tuong tac) or (cong tac)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc thiet) OR (hoc hien)) minh - hanh trinh qua dung ((tuong tac) OR (cong tac)) toan tap.
• Adding a wildcard symbol may retrieve word variants: ((hoc thiet) or (hoc hien)) minh - hanh trinh qua dung ((tuong tac) or (cong tac)) toan tap*.