Perhaps you should try some spelling variations:
hanh trinh » canh tranh, hanh chinh
trinh han » trinh quan
hang dung » hoang dung, dang dung, hang cung
quang ban » quang binh, quang tuan, quang tran
theo cuu » theo chu, khao cuu, thao cua
han hang » hang hang, han chang, ban hang
tuan ban » tuan bang, toan ban, thuat ban
luan ban » luan van, luan san, luan han

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

• Performing a fuzzy search may retrieve terms with similar spellings: theo cuu tinh - hanh trinh han hang dung tai ((((tuan ban) OR (quang ban))) or (luan ban))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: theo cuu tinh - hanh trinh han hang dung tai ((((tuan ban) OR (quang ban))) OR (luan ban)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "theo cuu tinh - hanh trinh han hang dung tai ((((tuan ban) OR (quang ban))) or (luan ban))".
• Adding a wildcard symbol may retrieve word variants: theo cuu tinh - hanh trinh han hang dung tai ((((tuan ban) OR (quang ban))) or (luan ban))*.