Perhaps you should try some spelling variations:
thien van » thi van
hieu van » hieu va, lieu va, hieu ve
nang xa » nang x, lang xa, nang ma
cau duc » cao duc, cau luc, chu duc
han tai » hang tai, nhan tai, van tai
tai cua » thai cua, tai cuc, tri cua
va han » va phan, van han, va hanh
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 ((hanh kem) or (sach y)) nang xa hoi. ((hieu van) OR (thien van)) cau duc va han tai cua tu~.
• If you are trying to use Boolean operators, they must be ALL CAPS: tu ((hanh kem) OR (sach y)) nang xa hoi. ((hieu van) OR (thien van)) cau duc va han tai cua tu.
• The words AND, OR and NOT may confuse the search; try adding quotes: "tu ((hanh kem) or (sach y)) nang xa hoi. ((hieu van) OR (thien van)) cau duc va han tai cua tu".
• Adding a wildcard symbol may retrieve word variants: tu ((hanh kem) or (sach y)) nang xa hoi. ((hieu van) OR (thien van)) cau duc va han tai cua tu*.