Perhaps you should try some spelling variations:
thanh vien » nhan vien, thanh van
cua triet » cua viet, su triet, va triet
vien cua » viec cua, dien cua, tien cua
thuy san » thuat san, thuy anh
hieu van » hieu va, thien van, lieu va
thuc va » thuc vat, thuc dan, thuc day
nang xa » nang x, lang xa, nang ma
tuc va » truc va, tuc xa, duc va
tu sac » tu sach, tu cac, tu san

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((tu sac) or (thuy san)) ky nang xa hoi. hieu van nam ((tuc va) OR (thuc va)) thanh vien cua triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((tu sac) OR (thuy san)) ky nang xa hoi. hieu van nam ((tuc va) OR (thuc va)) thanh vien cua triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((tu sac) or (thuy san)) ky nang xa hoi. hieu van nam ((tuc va) OR (thuc va)) thanh vien cua triet".
• Adding a wildcard symbol may retrieve word variants: ((tu sac) or (thuy san)) ky nang xa hoi. hieu van nam ((tuc va) OR (thuc va)) thanh vien cua triet*.