Perhaps you should try some spelling variations:
thanh lai » thanh hai, thanh lap, thanh loi
ban thanh » ban hanh, ban hang
thu sach » tu sach, thuat sach, thuoc sach
nam qua » nam quan, nam cua, nam mua
lai cuu » lai cua, lai chau, lai cuoc
cac qua » cau qua, tac quan
cuu tre » cua tre, cau tren, cau treo
hoa hoi » khoa hoi, hoa doi, hoc hoi
hieu va » lieu va, hieu qua
sach o » sach lo, sac o, sach y
o lang » hoa lang, hoi lang

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 o lang ((hoa hoi) OR (hoa hoc)). hieu va ((nam qua) or (cac qua)) ban thanh lai cuu tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thu sach o lang ((hoa hoi) OR (hoa hoc)). hieu va ((nam qua) OR (cac qua)) ban thanh lai cuu tre*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thu sach o lang ((hoa hoi) OR (hoa hoc)). hieu va ((nam qua) or (cac qua)) ban thanh lai cuu tre*".