Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
hanh tai » thanh tai, hang tai, han tai
hanh dai » hanh dao, vanh dai, thanh dat
xuc ban » duc ban, cuc ban, quoc ban
sach ty » sach y, sach tu, sach thu
hieu va » lieu va, hieu qua
mai hoi » mai khoi, dai hoi, lai hoi
ty nang » ky nang, ty xang, ty hang
va cam » va cham, va cac, va cao
ma hoi » xa hoi, ma hoa, me hoi
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: thuat sach ty nang ((ma hoi) OR (mai hoi)). hieu va cam xuc ban ((hanh dai) or (hanh tai)) cua te~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach ty nang ((ma hoi) OR (mai hoi)). hieu va cam xuc ban ((hanh dai) OR (hanh tai)) cua te.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach ty nang ((ma hoi) OR (mai hoi)). hieu va cam xuc ban ((hanh dai) or (hanh tai)) cua te".
• Adding a wildcard symbol may retrieve word variants: thuat sach ty nang ((ma hoi) OR (mai hoi)). hieu va cam xuc ban ((hanh dai) or (hanh tai)) cua te*.