Perhaps you should try some spelling variations:
tan hanh » tan thanh, tang hanh, toan hanh
tu sach » thu sach, su sach, te sach
sach ly » sach y, sach lo, sach ty
ly nang » ky nang, ly hang, ly vang
va giao » van giao, va giai, va gia
bai cua » ban cua, bai ca, hai cua
x hoi » xa hoi, o hoi, x ho

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

• Performing a fuzzy search may retrieve terms with similar spellings: tu sach ly nang x hoi. lieu va giao duc tan hanh ((bai cua) or (dai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ly nang x hoi. lieu va giao duc tan hanh ((bai cua) OR (dai cua)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ly nang x hoi. lieu va giao duc tan hanh ((bai cua) or (dai cua)) tre*.