Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
ban thanh » ban hanh, ban hang
thanh di » thanh doi, thanh de, thanh do
cam tuc » cam tu, nam thuc, dam thuc
sach ly » sach y, sach lo, sach ty
su sach » so sach, vu sach
hieu va » lieu va, hieu qua
lang xa » lang ha, dang xay, lang van
nang xa » nang x, nang ma, mang xa
di cua » dai cua, doi cua, de cua

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

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