Perhaps you should try some spelling variations:
ve triet » va trien, su triet
thanh vi » hanh vi, thanh va, thanh ve
va thanh » gia thanh, ban thanh, va tinh
van pham » san pham, van phan, van phat
hieu van » hieu va, thien van, lieu va
nang dai » nang dau, nang tai, lang dai
dai hoi » dai hoc, dai hai, dai moi
hoc mac » hoc ma, hoc may, hoc cac
hoc sac » hoc sach, hoc cac, hoc sau
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((hoc sac) OR (hoc mac)) ky nang dai hoi. hieu van pham duc va thanh vi ((cua te) or (ve triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((hoc sac) OR (hoc mac)) ky nang dai hoi. hieu van pham duc va thanh vi ((cua te) OR (ve triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "((hoc sac) OR (hoc mac)) ky nang dai hoi. hieu van pham duc va thanh vi ((cua te) or (ve triet))".
• Adding a wildcard symbol may retrieve word variants: ((hoc sac) OR (hoc mac)) ky nang dai hoi. hieu van pham duc va thanh vi ((cua te) or (ve triet))*.