Perhaps you should try some spelling variations:
giang xua » giang qua, giang quan, gian xu
thu sach » tu sach, thuat sach, thuoc sach
hieu van » hieu va, thien van, lieu va
day manh » van manh, ha manh
duc manh » suc manh, duc anh, duc minh
sach ty » sach y, sach tu, sach thu
van cam » van nam, van lam, van cau
xua tre » cua tre, dua tren

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

• Performing a fuzzy search may retrieve terms with similar spellings: thu sach ty ((mang may) or (nang x)) hoi. hieu van cam xuc ((day manh) OR (duc manh)) giang xua tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach ty ((mang may) OR (nang x)) hoi. hieu van cam xuc ((day manh) OR (duc manh)) giang xua tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach ty ((mang may) or (nang x)) hoi. hieu van cam xuc ((day manh) OR (duc manh)) giang xua tre".
• Adding a wildcard symbol may retrieve word variants: thu sach ty ((mang may) or (nang x)) hoi. hieu van cam xuc ((day manh) OR (duc manh)) giang xua tre*.