Perhaps you should try some spelling variations:
thanh dai » thanh hai, thanh tai, thanh oai
thanh dat » thanh san, thanh hai, thanh van
su triet » su viet, su tien, ve triet
suc bat » luc bat, duoc bat
te sach » toc sach
sach ty » sach y, sach tu, sach thu
van lam » van nam
van cam » van nam, van cau, van dam
nang xa » nang x, lang xa, nang ma
ty nang » ky nang, ty xang, ty hang

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 xa hoi. hieu ((van cam) or (van lam)) suc bat ((thanh dai) OR (thanh dat)) su triet~.
• If you are trying to use Boolean operators, they must be ALL CAPS: te sach ty nang xa hoi. hieu ((van cam) OR (van lam)) suc bat ((thanh dai) OR (thanh dat)) su triet.
• The words AND, OR and NOT may confuse the search; try adding quotes: "te sach ty nang xa hoi. hieu ((van cam) or (van lam)) suc bat ((thanh dai) OR (thanh dat)) su triet".
• Adding a wildcard symbol may retrieve word variants: te sach ty nang xa hoi. hieu ((van cam) or (van lam)) suc bat ((thanh dai) OR (thanh dat)) su triet*.