Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
danh vai » danh sai, danh va, doanh van
te sach » toc sach
nang xa » nang x, lang xa, nang ma
hieu ve » hieu va, hieu van
toi tao » tai tao, hoi thao, tuoi tai
sach ky » sac ky, sach y, sach ty
toi tap » toi gap, toan tap, tong tap
cua tu » cua tuc, cua su, cua cu
ve cac » va cac, vien cac

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky nang xa hoi. hieu ve cac ((toi tao) OR (toi tap)) danh vai ((cua triet) or (cua tu))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky nang xa hoi. hieu ve cac ((toi tao) OR (toi tap)) danh vai ((cua triet) OR (cua tu)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky nang xa hoi. hieu ve cac ((toi tao) OR (toi tap)) danh vai ((cua triet) or (cua tu))".
• Adding a wildcard symbol may retrieve word variants: te sach ky nang xa hoi. hieu ve cac ((toi tao) OR (toi tap)) danh vai ((cua triet) or (cua tu))*.