Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
hanh doi » thanh doi, hanh noi, hang doi
so sach » so sanh, bo sach, co sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
nang xa » nang x, lang xa, nang ma
dau tuc » dau tu, cau truc, dau nuoc
dao tuc » dao duc
doi cua » dai cua, hoi cua

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

• Performing a fuzzy search may retrieve terms with similar spellings: so sach ty nang xa hoi. lieu va ((dau tuc) OR (dao tuc)) van hanh doi cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "so sach ty nang xa hoi. lieu va ((dau tuc) OR (dao tuc)) van hanh doi cua triet".
• Adding a wildcard symbol may retrieve word variants: so sach ty nang xa hoi. lieu va ((dau tuc) OR (dao tuc)) van hanh doi cua triet*.