Perhaps you should try some spelling variations:
van tuan » van quan, van ban, anh tuan
van hanh » van thanh, ban hanh, van anh
te sach » toc sach
hai xuc » hai cuc, hai xu, chat xuc
hoi cua » hoi chuc
qua hai » qua hoat
ty hang » ly hang, ty xang, thi hang
ty nang » ky nang, ty xang, ly nang
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 ((ty nang) OR (ty hang)) x ho. hieu qua hai xuc ((van hanh) or (van tuan)) hoi cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ((ty nang) OR (ty hang)) x ho. hieu qua hai xuc ((van hanh) OR (van tuan)) hoi cua te*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ((ty nang) OR (ty hang)) x ho. hieu qua hai xuc ((van hanh) or (van tuan)) hoi cua te*".