Perhaps you should try some spelling variations:
sinh hoat » sinh hoc, sinh vat
hanh dao » lanh dao, thanh dat, thanh dam
tuc bach » truc bach, trac bach, tuc cac
tu sach » thu sach, su sach, te sach
hoat he » hoa he, hoat ho, thuat he
tu hanh » du hanh, lu hanh, thuc hanh
dao tuc » dao duc
bach ha » bac ha, bich ha, sach ha
ha phap » han phap, va phap, ha pha
xa hoa » xa khoa, ma hoa, va hoa

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 ((xa hoi) or (xa hoa)) sinh hoat he thong ) or ( tu hanh dao tuc bach ha phap tieng ))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (( tu sach ((xa hoi) OR (xa hoa)) sinh hoat he thong ) OR ( tu hanh dao tuc bach ha phap tieng )).
• Adding a wildcard symbol may retrieve word variants: (( tu sach ((xa hoi) or (xa hoa)) sinh hoat he thong ) or ( tu hanh dao tuc bach ha phap tieng ))*.