Perhaps you should try some spelling variations:
thuat sach » thuat lanh, thuat san
sach thi » sach thu, sach tai, sach thieu
thi nang » thi cong, ki nang, thi hanh
hanh tai » thanh tai, hang tai, han tai
cau tren » cu tren, dau tren, ca tren
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
hanh va » hang va, hanh vi
soc va » loc va, doc va, goc va

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 thi nang xa hoi. lieu va cham ((soc va) OR (hoc va)) ((hanh tai) or (hanh va)) cau tren~.
• If you are trying to use Boolean operators, they must be ALL CAPS: thuat sach thi nang xa hoi. lieu va cham ((soc va) OR (hoc va)) ((hanh tai) OR (hanh va)) cau tren.
• The words AND, OR and NOT may confuse the search; try adding quotes: "thuat sach thi nang xa hoi. lieu va cham ((soc va) OR (hoc va)) ((hanh tai) or (hanh va)) cau tren".
• Adding a wildcard symbol may retrieve word variants: thuat sach thi nang xa hoi. lieu va cham ((soc va) OR (hoc va)) ((hanh tai) or (hanh va)) cau tren*.