Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
van hanh » van thanh, ban hanh, van anh
phu lang » phap lang, phu khang, phu luong
hieu van » hieu va, thien van, lieu va
hanh dao » lanh dao, thanh dat, thanh dam
sach phu » sach thu, sach phat, sach thue
cua tre » cua te, cuu tre, dua tren
tu sach » thu sach, su sach, te sach
cam tuc » cam tu, nam thuc, dam thuc
lang xa » lang ha, dang xay, lang van

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach phu lang xa hoi. hieu van ((cam tuc) OR (cam xuc)) van hanh dao ((cua tre) or (cua triet))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach phu lang xa hoi. hieu van ((cam tuc) OR (cam xuc)) van hanh dao ((cua tre) OR (cua triet)).
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach phu lang xa hoi. hieu van ((cam tuc) OR (cam xuc)) van hanh dao ((cua tre) or (cua triet))".
• Adding a wildcard symbol may retrieve word variants: tu sach phu lang xa hoi. hieu van ((cam tuc) OR (cam xuc)) van hanh dao ((cua tre) or (cua triet))*.