Perhaps you should try some spelling variations:
theo chieu » theo tieu, thi chieu
hanh trinh » canh tranh, hanh chinh
dung cong » dung trong
ho chieu » hoc thieu, doi chieu, mot chieu
theo chu » cho chu, chao chu, theo yeu
trinh su » trinh tu, trinh san, trinh cau
cong van » cong vang, cong san, song van
van tuan » van quan, van ban, anh tuan
tuan ban » tuan bang, toan ban, luan 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 (((theo chieu) OR (theo chu)))) sach - hanh trinh su dung cong van tuan ban~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((ho chieu) OR (((theo chieu) OR (theo chu)))) sach - hanh trinh su dung cong van tuan ban.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((ho chieu) or (((theo chieu) OR (theo chu)))) sach - hanh trinh su dung cong van tuan ban".
• Adding a wildcard symbol may retrieve word variants: ((ho chieu) or (((theo chieu) OR (theo chu)))) sach - hanh trinh su dung cong van tuan ban*.