Perhaps you should try some spelling variations:
van quan » van ban
thai cua » than cua, tai cuc, tri cua
tu sach » thu sach, su sach, te sach
sach ky » sac ky, sach y, sach ty
nang xa » nang x, lang xa, nang ma
va cham » va chat, va tham
tai cua » tai cuc, tri cua, dai cua
va cam » va cac, va cao, va cai
lo van » le van, vo van, so van

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 ky nang xa hoi. lieu ((va cam) OR (va cham)) lo van quan ((tai cua) or (thai cua)) tre~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu sach ky nang xa hoi. lieu ((va cam) OR (va cham)) lo van quan ((tai cua) OR (thai cua)) tre.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu sach ky nang xa hoi. lieu ((va cam) OR (va cham)) lo van quan ((tai cua) or (thai cua)) tre".
• Adding a wildcard symbol may retrieve word variants: tu sach ky nang xa hoi. lieu ((va cam) OR (va cham)) lo van quan ((tai cua) or (thai cua)) tre*.