Perhaps you should try some spelling variations:
nam thuc » nam thuoc, am thuc, nam thu
tu sach » thu sach, su sach, te sach
sach ty » sach y, sach tu, sach thu
ty nang » ky nang, ty xang, ty hang
cao hoi » cau hoi, co hoi, cao hoc
thuc xa » thuc xay, tuc xa, thuc va
xa hanh » xa thanh, xa khanh, va hanh
tai cuu » tai buu, tai cua, thai cua
va nam » van nam, ha nam, va nay

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 ty nang cao hoi. lieu va nam thuc xa hanh ((tai cuu) or (tai cuc)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ty nang cao hoi. lieu va nam thuc xa hanh ((tai cuu) OR (tai cuc)) tre.
• Adding a wildcard symbol may retrieve word variants: tu sach ty nang cao hoi. lieu va nam thuc xa hanh ((tai cuu) or (tai cuc)) tre*.