Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
hoc thieu » toc thieu, hoc hien
trinh cua » tinh cua, trinh luat, trinh quan
vuong dan » huong dan, xuong dan, vuong dao
tuong dan » huong dan, tung dan, xuong dan
ho chieu » theo chieu, doi chieu, mot chieu
cua hung » cua nhung, cua chung, cua huong
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: ((ho chieu) or (hoc thieu)) tinh - hanh trinh cua hung ((vuong dan) OR (tuong dan)) toan tap~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (hoc thieu)) tinh - hanh trinh cua hung ((vuong dan) OR (tuong dan)) toan tap.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (hoc thieu)) tinh - hanh trinh cua hung ((vuong dan) OR (tuong dan)) toan tap".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (hoc thieu)) tinh - hanh trinh cua hung ((vuong dan) OR (tuong dan)) toan tap*.