Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
vien cac » vien bach, vien dai, vien da
vu khach » vu khanh, vu khac, vay khach
danh ban » doanh ban, danh bat, danh bac
ban cua » ban quan
va danh » va dinh, va dan, va hanh
su sach » so sach, vu sach
nang xa » nang x, lang xa, nang ma
ve cac » va cac
tuc va » thuc va, truc va, tuc xa

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((su sach) or (vu khach)) ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc va danh ban cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((su sach) OR (vu khach)) ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc va danh ban cua triet*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((su sach) or (vu khach)) ky nang xa hoi. hieu ((ve cac) OR (vien cac)) tuc va danh ban cua triet*".