Perhaps you should try some spelling variations:
cua triet » cua viet, su triet, va triet
tuan hai » tuan khai, quan hai, tran hai
van tuan » van quan, van ban, anh tuan
sach ly » sach y, sach ty, sach hay
hai cua » thai cua, dai cua, hoi cua
cam tuc » cam tu, nam thuc, dam thuc
hieu va » lieu va, hieu qua
nang xa » nang x, lang xa, nang ma
sach lo » sach dao, sach doi, sach hoi

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

• If you are trying to use Boolean operators, they must be ALL CAPS: te ((sach ly) OR (sach lo)) nang xa hoi. hieu va ((cam tuc) OR (cam xuc)) van tuan hai cua triet~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te ((sach ly) OR (sach lo)) nang xa hoi. hieu va ((cam tuc) or (cam xuc)) van tuan hai cua triet~".
• Adding a wildcard symbol may retrieve word variants: te ((sach ly) OR (sach lo)) nang xa hoi. hieu va ((cam tuc) or (cam xuc)) van tuan hai cua triet*.