Perhaps you should try some spelling variations:
gianh lai » gian lan
hieu van » hieu va, thien van, lieu va
va gianh » va gian, van giang, va giai
cham duc » pham duc, cham soc, pham duy
te sach » toc sach
lai cua » dai cua, hai cua, lai chau
hieu ve » hieu va
sach ky » sac ky, sach y, sach ty
tay hoi » tao hoi, tay thai
ky bang » ky nang, ky dang, ke bang
tay ho » tay co, tay o, tay khao
cua te » cua tu

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

• Performing a fuzzy search may retrieve terms with similar spellings: te sach ky bang ((tay hoi) or (tay ho)). ((hieu ve) OR (hieu van)) cham duc va gianh lai cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ky bang ((tay hoi) OR (tay ho)). ((hieu ve) OR (hieu van)) cham duc va gianh lai cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ky bang ((tay hoi) or (tay ho)). ((hieu ve) OR (hieu van)) cham duc va gianh lai cua te".
• Adding a wildcard symbol may retrieve word variants: te sach ky bang ((tay hoi) or (tay ho)). ((hieu ve) OR (hieu van)) cham duc va gianh lai cua te*.