Perhaps you should try some spelling variations:
tang dai » tang tai, tang dan, lang dai
tu sach » thu sach, su sach, te sach
va hanh » van hanh, va thanh, va danh
ky tang » ky nang, ky dang, kho tang
hieu su » hieu sau, tieu su, hieu so
dai moi » doi moi, dai hoi
vi cua » vai cua, di cua
xuc va » duc va, tuc va, luc va
su cam » su nam, su cao, su can
tu sac » tu cac, tu bac, tu lac
tu san » thu san, tu ban, tu can
cua tu » cua tuc, cua su, cua cu

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

• Performing a fuzzy search may retrieve terms with similar spellings: ((((tu sac) OR (tu sach))) or (tu san)) ky tang dai moi. hieu su cam xuc va hanh vi cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: ((((tu sac) OR (tu sach))) OR (tu san)) ky tang dai moi. hieu su cam xuc va hanh vi cua tu*.
• The words AND, OR and NOT may confuse the search; try adding quotes: "((((tu sac) OR (tu sach))) or (tu san)) ky tang dai moi. hieu su cam xuc va hanh vi cua tu*".