Perhaps you should try some spelling variations:
pham quoc » phan quoc, phim quoc, phap quoc
yen lang » den lang, ten lang, yen giang
gia hanh » gia thanh, giao hanh, gia anh
te sach » toc sach
hieu vi » hieu voi, hieu va, hieu ve
cuu tre » cua tre, cau tren, cau treo
y lang » _ lang, tay lang
o lang » hoa lang, hoi lang
vi cuu » vi luu, vinh cuu

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 ((((y lang) OR (yen lang))) OR (o lang)) xa hoi. hieu vi pham quoc gia hanh vi cuu tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((((y lang) OR (yen lang))) or (o lang)) xa hoi. hieu vi pham quoc gia hanh vi cuu tre~".
• Adding a wildcard symbol may retrieve word variants: te sach ((((y lang) OR (yen lang))) or (o lang)) xa hoi. hieu vi pham quoc gia hanh vi cuu tre*.